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衰老过程可以延迟甚至逆转?日本筑波大学的Jun-Ichi Hayash教授领导的研究团队最近发现至少在人类细胞系中确有如此可能。他们还确认了两种特殊的,能够调节最小和结构最简单的氨基酸—甘氨酸生成的基因部分参与了衰老的过程。这篇研究发表在最近的ScientificR eports上。
在许多物种(包括人类)中,线粒体功能异常是衰老的标志之一。这种理论来源于线粒体在细胞中扮演的能源站角色,它通过细胞呼吸过程产生的能量,为细胞供能。线粒体DNA损伤会使线粒体DNA改变或者突变。而这些变化的积累与寿命的降低[查看]
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http://cxbio.com/Article/gasjdnzslxgxltqx_1.html
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一种新的技术可以更容易地定位和抑制细胞中特定的酶和其他蛋白质,并能通过光来任意开启和关闭这一调节。该方法为研究人员提供在天然细胞环境下研究蛋白质的功能的另一种工具。这篇研究在线发表在最近的Nature Chemistry。
在这项研究中,英国剑桥大学医学研究分子生物学实验室的Jason W. Chin和他的同事通过有选择地束缚小分子抑制剂到靶蛋白使得酶的活性被抑制。他们在这过程中使用到了他们之前发表的一种技术,应用了在细胞中发现的含有紧密烯烃和炔基非天然氨基酸的特殊基因编码蛋白。因此研究人员能够迅速和明确使用与嗪[查看]
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http://cxbio.com/Article/jsibolttydwkzdbgn_1.html
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近日,一篇发表于国际杂志Nature Communications上的研究论文中,来自墨尔本大学的一项研究表明,高水平的铁蛋白或许和个体轻度认知损伤向阿尔兹海默氏症过渡直接相关。
文章中研究人员对91名认知正常的个体、144有轻度认知损伤的个体及67名阿尔兹海默氏症个体进行了长达7年的研究,研究结果显示,在那些轻度认知损伤个体的脑脊髓液中较高水平的铁蛋白或许和其向阿尔兹海默氏症转换直接相关,而铁蛋白和ApoE4基因的存在存在强相关性,ApoE4基因是熟知的阿尔兹海默氏症风险基因。
James Pickett博[查看]
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http://cxbio.com/Article/tdbhlncdygx_1.html
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生物系统中存在很多的自主复制的例子。然而,人工制造这样的生物系统的自主复制系统却是相当困难,这是因为生物系统很复杂。在其他领域,人类可以创造某些自我复制系统,比如磁场系统以及模块化机器人等等。我们很少将这些人造的自我复制系统和生物系统中的自我复制系统进行比较。因而,如果能从理论上将人工的自主复制系统和生物细胞系统中的复制进行比较,这对于设计新型自主复制系统具有很大意义。其中,细胞中的DNA分子就是一个很好的切入点。基于其可以进行相互识别的特性,即DNA分子可以完成自组装和复制。
最近,韩国科学家们的研究证明,[查看]
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http://cxbio.com/Article/dnahzfzdzzfz_1.html
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近日,一项发表于国际著名杂志Nature Structural and Molecular Biology上的研究论文中,来自伊利诺伊大学的科学家们通过研究确定了一种存在于大脑斑块细纤维中的特殊分子结构,该分子结构或是阿尔兹海默氏症发病的标志,这种分子名为β淀粉样蛋白-42,其对神经细胞具有毒性,而且被认为可以刺激疾病的级联反应。
理解纤维中β淀粉样蛋白-42的氨基酸长链形式的物质结构,对于揭示β淀粉样蛋白如何进行不正确地折叠以及在大脑中积聚形成毒性斑块非常重要。研究者Yoshita[查看]
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http://cxbio.com/Article/lncdbxxlfxxw_1.html
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西宝生物科技(上海)股份有限公司作为Ludger的中国区总代理,提供唾液酸分析产品与方案,咨询/订购热线:400-021-8158
NeuAc(唾液酸)和NeuGc(神经氨酸)的定量分析是监管机构在生物制药表征的产品标准规格指南中提出的一个要求。特别是,人类和非人类的唾液酸 (NeuAc / NANA和NeuGc / NGNA分别)相对水平测定是非常重要的,因为有些病人有高水平的抗神经氨酸(anti-NeuGc)抗体,这可导致中和反应和快速清除含有神经氨酸(NeuGc)的生物药品 (Nguyen等,2005)。由于唾液酸[查看]
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http://cxbio.com/Article/tysfxcpludgerddmbbjs_1.html
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嗅球处神经纤维缠结是阿尔茨海默病(AD)的早期病理表现。为明确嗅觉障碍在预测未来认知功能下降与AD痴呆中的实用性,来自哥伦比亚大学的Devanand教授开展了一项前瞻性观察研究,证实嗅觉损害不仅可预测“健康”人群的认知受损,还能早期预测轻度认知功能下降(MCI)发展为AD痴呆的可能性,该研究发表在近期的Neurology杂志。
该研究在纽约北麦哈顿的一个多民族社区人群中进行,共纳入1037例认知功能正常的受试者。研究者采用宾夕法尼亚大学嗅觉鉴定试验(UPSIT)对受试者进行嗅觉测试,UPS[查看]
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http://cxbio.com/Article/lncddzqswbjwxjza_1.html
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2015年2月11日,中科院生物物理所王江云研究组在国际著名期刊Journal of the American Chemical Society上发表了最新研究成果。在这篇题为“Defining the Role of Tyrosine and Rational Tuning of Oxidase Activity by Genetic Incorporation of Unnatural Tyrosine Analogs”的论文中,研究人员通过基因编码的方法将一系列类似酪氨酸的非天然氨基酸[查看]
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http://cxbio.com/Article/zkykxjlyftrajszjsdbg_1.html
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近日,国际学术期刊nature communication在线发表了中国医学科学院和北京协和医学院研究人员关于应用单克隆抗体治疗H7N9禽流感病毒的最新研究进展,这项研究对于H7N9禽流感病毒预防和治疗,预防H7N9禽流感病毒大流行具有重要意义。
2013年2月,H7N9禽流感病毒亚型在中国华东地区出现,随后不久出现人感染H7N9病毒的情况,人感染H7N9禽流感会引起发热,咳嗽,有痰等急性呼吸道传染病症状,并造成重症肺炎,严重者可导致死亡。H7N9禽流感病毒的爆发严重威胁公众健康,但目前预防和控制人感染H7N9禽[查看]
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http://cxbio.com/Article/zgkxjfxkjh7n9qlgbdxk_1.html
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干细胞具有强烈的身份认同感。例如,从毛囊住所处取出干细胞,将它们置于培养基中培养,这些细胞仍然会保持真实的自我。在过渡状态下等待一段时间后,一旦将它们移植回皮肤,这些培养细胞能够再生出毛囊以及其他的皮肤结构。然而人们并不清楚这些干细胞(以及身体其他部位的干细胞)是如何在特殊的环境中保持生成新组织及愈合伤口的能力的。
来自洛克菲勒大学的一项新研究发现一个蛋白Sox9主导控制了细胞的可塑性。在发表于3月10日《自然》(Nature)杂志上的一篇研究论文中,该研究小组将Sox9描述为是一个“先锋因子&rdq[查看]
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http://cxbio.com/Article/gxbrhjzzjdsf_1.html
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上个月是再生医学具有历史意义的时刻,世界上第一个合法的干细胞商业化成功,这种细胞是从脐带中采集的,欧盟授权Holoclar可用这种细胞治疗角膜烧伤致盲患者。让人吃惊的是,这个细胞被成功上市的来自一家意大利的小实验室。意大利对生命科学的支持力度比较小,在意大利干细胞治疗也曾经因为Stamina基金会治疗多种疾病的非法市场化闹地沸沸扬扬,而且引起了国际干细胞领域的关注。这次成功主要来自摩德纳大学再生医学中心研究团队主任GraziellaPellegrini教授,她和同事克服了许多困难,将干细胞治疗成功推向市场。
该小[查看]
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http://cxbio.com/Article/gxbsyhcgdbhgs_1.html
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大规模NGS应用带来不仅仅是技术上的革新,相对传统更加复杂和精细操作,注定了这一技术将会更多地依赖自动化设备来完成。作为临检机构和近期崛起的众多第三方检测公司,在将NGS设备收入囊中之后,必然要考虑开始自动化样品制备系统的投入。只有将整个样品准备流程通过可靠的系统来完成,才能真正配得上是高质量的NGS检测流程。
★ 那么问题来了,什么才是一套称职的自动化系统?
作为一套符合标准的NGS样品制备系统,最基本的要求就是能够提供符合标准的文库DNA,以浓度和片段大小作为考核的标准。
而决定这一切的是试[查看]
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http://cxbio.com/Article/rhxzngszdhxt_1.html
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最近,中国科学技术大学单革教授实验室在国际知名杂志《自然-结构和分子生物学》(Nature Structural & Molecular Biology)发表研究性论文,报导了其实验室发现的一类新型非编码RNA以及此类非编码RNA的功能和功能机理。
非编码RNA是一大类不编码蛋白质而在细胞中起着调控作用的RNA分子。单革教授实验室发现了一类新型的环状非编码RNA,在这类环状RNA中,内含子没有被除去、而是被保留在环形RNA当中,因此这类RNA被作者命名为外显子-内含子环形RNA(EIciRNA)。该文研究[查看]
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http://cxbio.com/Article/zgkdfxxxfbmrna_1.html
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投过论文的朋友应该都知道,一般情况下审稿人的名字是保密的,但论文作者的名字审稿人是知晓的。如今,Nature打算推行双盲审稿,这样审稿人便不会知道论文的作者,也会减少很多偏见。
从2015年3月份开始,Nature(《自然》)与自然旗下月刊,将提供一个替代传统的同行评议,即双盲审稿。作者可以在审稿时要求隐瞒名字和所属单位,通过双盲形式的同行评议,可能有助于审稿的客观与公平。目前,这个过程是单盲:评审是匿名的,但他们知道作者的身份。
替代传统的同行评议过程中经常提出。有人建议全面开放的评论,其中既有作者和审稿人的[查看]
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http://cxbio.com/Article/naturesgxjcsmsg_1.html
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GlycoBricks? 是从生物活性寡糖中分离出来的官能团化低聚糖.上海西宝生物提供官能团修饰多糖,原装进口,咨询/订购热线:400-021-8158[查看]
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http://cxbio.com/Article/elicityl_GlycoBricks_1.html
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1-萘乙酸 1-Naphthaleneacetic acid
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N-羟乙基乙二胺-N,N',N'-三乙酸.3Na
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Phos-tag(TM) 质谱分析试剂盒 Phos-tag(TM) Mass Analytical Kit
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Anti Human Amyloid β, Monoclonal Antibody(BAN50)
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Anti Amyloid β, Monoclonal Antibody(BNT77)
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Anti Amyloid β40, Monoclonal Antibody(BA27)
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Anti Amyloid β42(43), Monoclonal Antibody(BC05)
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测序级谷氨酰蛋白内切酶 Endoproteinase Glu-C
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2-AA标记NA4多糖标准品
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Neutrophil gelatinase-associated lipocalin (NGAL)
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Neutrophil gelatinase-associated lipocalin (NGAL)
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Para-Lacto-N-hexaose analogue/p-LNH analogue
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Tetra-N-Acetyl-D-Lactosamine / TetraLacNAc
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Tri-N-Acetyl-D-Lactosamine / TriLacNAc
-
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Galacto-N-neoPentaose / DiLacNAc-β-3Galactose
-
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Di-N-Acetyl-D-Lactosamine / DiLacNAc
-
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N-Acetyl-D-Lactosamine / LacNAc
-
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Blood group H antigen triaose type5-NAc-spacer1-NH2
-
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Blood group H antigen pentaose type 1-Nacetyl-Spacer 3-Biotin
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6GrA1-NAc-spacer2-NH2
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Blood group A antigen tetraose type 5-NAc-spacer2-NH2
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Blood group A antigen tetraose type 5-NAc-spacer1-NH2
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6GrA1-NAc-spacer3-Biotin
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Gb4-Nac-空间构型3-生物素
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GalGalNac-aGM1 神经节苷脂类糖
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甲氧基聚乙二醇丙醛 mPEG-Propionaldehyde (MPEG-pALD)
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琥珀酰亚胺碳酸酯-PEG-羧甲基 Succinimidyl Carbonate-PEG-Carboxymethyl
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甲氧基聚乙二醇SAS酯 mPEG-Succinimidyl Amido Succinate
-
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甲氧基聚乙二醇SC酯 mPEG-Succinimidyl Carbonate
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甲氧基聚乙二醇SS酯 mPEG-Succinimidyl Succinate
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甲氧基聚乙二醇SPA酯 mPEG-Succinimidyl Propionate
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四臂聚乙二醇SAS酯 4 arm PEG-Succinimidyl Amido Succinate
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四臂聚乙二醇SC酯 4 arm PEG-Succinimidyl Carbonate
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四臂聚乙二醇SS酯 4 arm PEG-Succinimidyl Succinate
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甲氧基聚乙二醇SAS酯四分子量套装 mPEG-Succinimidyl Amido Succinate, 4 MW Kit
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甲氧基聚乙二醇-NPC酯 mPEG-Nitrophenyl Carbonate
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NPC酯-聚乙二醇-NPC酯 Nitrophenyl Carbonate-PEG-Nitrophenyl Carbonate
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tBOC-氨基-PEG-对硝基苯基碳酸酯 tBOC-NH-PEG-Nitrophenyl Carbonate
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tBOC-氨基-聚乙二醇-SC酯 tBOC-NH-PEG-Succinimidyl Carbonate
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鼠源RNase抑制剂
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Fast DNA Spin Kit for Soil (MP土壤基因组DNA纯化试剂盒)
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羧甲基纤维素钠|Carboxymethyl cellulose sodium salt|CMC Na (货号:117221)
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5’-腺苷二磷酸二钠盐|ADP.2Na|16178-48-6|Adenosine 5-diphosphate disodium salt
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乙酰辅酶A.3Na
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5’-单磷酸腺苷.2Na
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5’-二磷酸腺苷.Na
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5’-三磷酸腺苷2Na
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尿苷二磷酸-半乳糖,2Na
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尿苷二磷酸-葡萄糖,2Na
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ADP2Na;腺苷-5'-二磷酸二钠盐
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Alkaline Phosphatase Mutein, recombinant,from calf intestine, expressed in Pichia pastoris, lyophilizate
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Alkaline Phosphatase, recombinant, highly active from calf intestine, expressed in Pichia pastoris, solution
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Alkaline Phosphatase, recombinant, highly active, carbohydrate reduced,from calf intestine, expressed in Pichia pastoris, solution
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β-Galactosidase, recombinant, EIA Grade,from E. coli overproducer, lyophilizate
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NAD, Grade I,free acid
-
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NADH, Grade I,disodium salt
-
-
NADH, Grade II,disodium salt
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NADH, Grade II,for potassium test, disodium salt
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-
NADP,disodium salt
-
-
NADP,monopotassium salt
-
-
NADPH,tetrasodium salt
-
-
Thio-NAD,free acid
-
-
NADH, Grade I(试剂级)
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NADH, Grade II(食品级)
-
-
NADP-2Na,Grade I(医药级)
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PIPES-2Na; 哌嗪-N,N’-双(2-乙磺酸)二钠盐
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PIPES-1.5Na; 哌嗪-N,N'-二 (2-乙磺酸)倍半钠盐
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测序级天冬氨酰蛋白内切酶 Endoproteinase Asp-N
-
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磁珠法微量病毒RNA提取试剂盒
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磁珠法组织RNA提取试剂盒
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(R,S)-N-Nitrosoanabasine
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(R,S)-N-Nitrosoanatabine
-
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NAT, (R,S)-N-Nitrosoanatabine
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NAT-d4
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NAT-β-D-glucuronide
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NAB, (R,S)-N-Nitrosoanabasine
-
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NAB-d4
-
-
rac-NAB-D-glucoside
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-
NNA 4-(N-Methyl-N-nitrosamino) -4-(3-pyridyl)butanal
-
-
iso-NNAL iso-4-(methylnitrosamino) -1-(3-pyridyl)-1-butanol
-
-
NNAL 4-(Methylnitrosamino) -1-(3-pyridyl)-1-butanol
-
-
NNAL-1,2’,3’,4’,5’,6’-13C6
-
-
NNAL-Methyl-d3
-
-
NNAL-N-β-D-glucuronide
-
-
NNAL-d3-N-β-D-glucuronide
-
-
NNAL-N-Oxide
-
-
Homo-NNAL
-
-
0.1mol/l Ammonium Thiocyanate Solution(N/10)
-
-
0.1mol/l Potassium Thiocyanate Solution (N/10)
-
-
0.05mol/l Sodium Carbonate Solution(N/10)
-
-
0.25mol/l Sodium Carbonate Solution(N/2)
-
-
0.5mol/l Sodium Carbonate Solution(1N)
-
-
EDTA-2Na solution(0.01mol/l)
-
-
EDTA-2Na solution(0.02mol/l)
-
-
EDTA-2Na solution(0.1mol/l)
-
-
EDTA-2Na solution(0.05mol/l)
-
-
Sodium Carbonate
-
-
Ammonium thiocyanate 0.05N
-
-
Ammonium thiocyanate 0.1N
-
-
Ammonium thiocyanate 0.1N
-
-
Ammonium thiocyanate 1.0N 1.0M
-
-
Ammonium thiocyanate 1.0N 1.0M
-
-
Potassium thiocyanate 0.02N 0.02M
-
-
Potassium thiocyanate 0.02N 0.02M
-
-
Potassium thiocyanate 0.05N 0.05M
-
-
Potassium thiocyanate 0.05N 0.05M
-
-
Potassium thiocyanate 0.1N 0.1M
-
-
Potassium thiocyanate 0.1N 0.1M
-
-
Potassium thiocyanate 1.0N 1.0M
-
-
Potassium thiocyanate 1.0N 1.0M
-
-
Potassium thiocyanate 1.0N 1.0M
-
-
Sodium thiocyanate 0.1N 0.1M
-
-
Sodium thiocyanate 0.1N 0.1M
-
-
Sodium thiocyanate 1.0N 1.0M
-
-
Sodium thiocyanate 1.0N 1.0M
-
-
Ammonium thiocyanate 0.1N (0.1M)
-
-
Potassium Permanganate 0.1N (0.02M)
-
-
Potassium Permanganate 0.01N
-
-
Potassium Permanganate 0.05N 0.01M
-
-
Potassium Permanganate 0.05N 0.01M
-
-
Potassium Permanganate 0.1N 0.02M
-
-
Potassium Permanganate 0.1N 0.02M
-
-
Potassium Permanganate 0.1N 0.02M
-
-
Potassium Permanganate 1.0N 0.2M
-
-
Potassium Permanganate 1.0N 0.2M
-
-
Sodium Hydroxide 0.1M (Low in Carbonate) 0.1N 0.1M
-
-
Sodium Hydroxide (Low in Carbonate) 0.1N 0.1M
-
-
Sodium Hydroxide (Low in Carbonate) 0.5N 0.5M
-
-
Sodium Hydroxide (Low in Carbonate) 0.5N 0.5M
-
-
Sodium Hydroxide (Low in Carbonate) 1.0N 1.0M
-
-
Sodium Hydroxide (Low in Carbonate) 1.0N 1.0M
-
-
Sodium Hydroxide (Low in Carbonate) 0.115M 0.115N
-
-
Sodium Hydroxide (Low in Carbonate) 1.2N 1.2M
-
-
Sodium Hydroxide (Low in Carbonate) 0.1N 0.1M
-
-
Sodium Hydroxide (Low in Carbonate) 0.5N 0.5M
-
-
Sodium Carbonate 0.1N 0.05M
-
-
Sodium Carbonate 0.1N 0.05M
-
-
Sodium Carbonate 1.0N 0.5M
-
-
Sodium Carbonate 1.0N 0.5M
-
-
Potassium thiocyanate 0.05N 0.05M
-
-
Crystal Violet Indicator, 0.1% (w/v) in Glacial Acetic Acid, for Nonaqueous Titrations
-
-
Crystal Violet Indicator, 0.2% (w/v) in Glacial Acetic Acid, for Nonaqueous Titrations
-
-
4,4-Bis(4-amino-l-naphtylazo)-2,2-stilbenedisulfonic Acid
-
-
BANASS-Brilliant Yellow Methanol (90) Solution
-
-
4,4- Bis(4-amino-1-naphtylazo)-2,2-stilbenedisulfonic Acid
-
-
2-Hydroxy-l-(2-Hydroxy-4-sulfo-l-naphthylazo) -3-naphthoic Acid
-
-
2-Hydroxy-l-(2-hydroxy-4-sulfo-l-naphthylazo)-3-naphthoic Acid, diluted with Potassium Sulfate
-
-
2-Hydroxy-l-(2-hydroxy-4-sulfo-l-naphthylazo)-3-naphthoic Acid, diluted with Potassium Sulfate
-
-
2-Hydroxy-l-(2-Hydroxy-4-sulfo-l-naphthylazo)-3-naphthoic Acid, Solution in Organic Solvent
-
-
Carbonate pH Standard Solution (pH 10.01)
-
-
Sodium Hydrogen Carbonate
-
-
Sodium Carbonate
-
-
TDS Standard 1382 ppm NaCl @25℃
-
-
Silver 5M NaNO3
-
-
Bromide 5M NaNO3
-
-
Cadmium 5M NaNO3
-
-
Chloride 5M NaNO3
-
-
Copper 5M NaNO3
-
-
Mercury 5M NaNO3
-
-
Iodide 5M NaNO3
-
-
Potassium 5M NaCl
-
-
Lead 2.5M NaNO3
-
-
thiocyanate 5M NaNO3
-
-
thiocyanate 1000ppm
-
-
0.2w/v% p- Naphtholbenzein Acetic Acid Solution
-
-
Analytical Grade Water
-
-
Analytical Grade Water
-
-
Chromium(lll) Acetylacetonate
-
-
Sodium 2,2-Dimethyl-2-silapentane-5-sulfonate[DSS]
-
-
N-(Dithiocarboxy)sarcosine Disodium Salt Dihydrate (DTCS Na)
-
-
N-(Dithiocarboxy)sarcosine Disodium Salt Dihydrate (DTCS Na)
-
-
N-Cinnamoyl-N -2,3-xylylhydroxylamine
-
-
Sodium Standard Solution (Na 100)
-
-
Sodium Standard Solution(Na l,000)
-
-
Vanadium Standard Solution(V 1000)
-
-
Vanadium Standard 1000ppm in 0.5M HNO3
-
-
Vanadium Standard 10000ppm in 0.5M HNO3
-
-
Standard-Li 250ppm, K 10,000ppm & Na 1,000ppm in 2% HNO3
-
-
Standard-Al 100ppm, Ba 100ppm, B 100ppm, K 1,000ppm, Si 500ppm, Ag 50ppm & Na 10
-
-
Solution, Na2SiO3, H2O, 1000mg/l
-
-
Vanadium 2-5% HNO3 (v/v) 100ug/mL
-
-
Vanadium 2% HNO3 1,000ug/mL
-
-
Vanadium 2% HNO3 1,000ug/mL
-
-
Vanadium 2% HCl 1,000ug/mL
-
-
Vanadium 2-5% HNO3 (v/v) 1000ug/mL
-
-
Vanadium 2-5% HNO3 (v/v) 10000ug/mL
-
-
Vanadium 15% HNO3 10,000ug/mL
-
-
Vanadium 15% HCl 10,000ug/mL
-
-
Internal Standard Mix 1 in 10% HNO3
-
-
Internal Standard Mix 2 6 Elements
-
-
Internal Standard Mix 3 in 7% HNO3
-
-
Internal Standard 5 Elements in 2-5% HNO3
-
-
Internal Standard 7 Elements in 5% HNO3
-
-
Internal Standard 7 Elements
-
-
Internal Standard 7 Elements
-
-
Internal Standard 7 Elements according to Test Method 200.8
-
-
Internal Standard 7 Elements according to Test Method 6020
-
-
Calcium Carbonate
-
-
Stray Light Inorganic Cut-off filter (227nm )Lithium Carbonate
-
-
Stray Light Inorganic Cut-off filter (227nm) Lithium Carbonate
-
-
iso-Butyl Alcohol, Luminasol(R)
-
-
Methanol, Luminasol(R)
-
-
Dimethyl Sulfoxide, Luminasol(R)
-
-
Acetonitrile, Luminasol(R)
-
-
Cyclohexane, Luminasol(R)
-
-
N,N-Dimethylformamide, Luminasol(R)
-
-
Silver Vanadate
-
-
System Suitability Set to JP;Reagent H2O,0.5 mg/L C from Sodium Dodecylbenzene Sulfonate
-
-
0.5 mg/L C from Sodium Dodecylbenzene Sulfonate
-
-
TIC Standard 0.5mg/L as Na2CO3
-
-
TIC Standard 1.0mg/L as Na2CO3
-
-
TIC Standard 1.5mg/L as Na2CO3
-
-
TIC Standard 2mg/L as Na2CO3
-
-
TIC Standard 5mg/L as Na2CO3
-
-
TIC Standard 10mg/L as Na2CO3
-
-
TIC Standard 25mg/L as Na2CO3
-
-
TIC Standard 50mg/L as Na2CO3
-
-
TIC Standard 4mg/L as Na2CO3
-
-
TOC Standard 50mg/L C as Nicotinamide
-
-
TOC Standard 0.5mg/L C as Nicotinamide
-
-
Sodium Ion Standard Solution (Na+: 1,000ppm)
-
-
Nitrite NaNO2 H2O 1000mg/L
-
-
Multi Element Standard in H2O / Tr HNO3 Na 200ppm K 10ppm Mg 2ppm
-
-
Chlorinated Pesticides in Dogfish liver Oil
-
-
Polychlorinated Biphenyls and Organochlorine Pesticides in Marine Sediment (Low Pollutant Concentrations)
-
-
Polychlorinated Biphenyls in Insulation Oil (High Concentrations)
-
-
Polycarbonate for Positron Hole-size Measurements 洵价
-
-
Fine Alumina Powder for Fine Ceramics-Low Purity
-
-
Arsenate[As(V)] Solution
-
-
Polychlorinated Biphenyls and Organochlorine Pesticides in Marine Sediment (High Pollutant Concentrations)
-
-
Polybrominated Diphenyt Ethers in Polystyrene
-
-
Potassium Perfluorooctanesulfonate in Methanol
-
-
Polychlorinated Biphenyls in Insulation Oil Set (High Concentrations)
-
-
Sodium Carbonate
-
-
Polystyrene Latex Nanoparticle, 120 nm
-
-
Polybrominated Diphenyl Ethers in Polystyrene (High Concentration)(contained:5sheet;non-contained;2sheet)
-
-
Polychlorinated Biphenyls in Insulation Oil (Low Concentrations)
-
-
Fine Alumina Powder for Fine Ceramics-High Purity
-
-
Polybrominated Diphenyl Ethers in Poly(Vinyl Chloride) Resin(contained:lsheet;non-contained:1sheet)
-
-
Melting Point Standard Set Vanillin (81-83°C) Phenacetin (134-136°C)°Caffeine (235-237°C)
-
-
n-Octadecyl 3-(3',5'-Di-t-butyl-4'-hydroxyphenyl)propionate Standard
-
-
Pentaerythritol Tetrakis[3-(3',5'-di-t-butyl -4'-hydroxyphenyl)propionatel Standard
-
-
Decahydronaphthalene(mixture of cis-and trans-)
-
-
Tetrahydronaphthalene
-
-
Curcumin, Natural
-
-
CSK Standard Solution Silicate (contains 3.05% NaCl)
-
-
CSK Standard Solution Phosphate (contains 3.05% NaCl) P:3.00ug atom/l
-
-
CSK Standard Solution Silicate (contains 3.05% NaCl)
-
-
CSK Standard Solution Silicate (contains 3.05% NaCl)
-
-
CSK Standard Solution nitrate (contains 3.05% NaCl)
-
-
CSK Standard Solution Phosphate (contains 3.05% NaCl) P:3.00ug atom/l
-
-
CSK Standard Solution Phosphate (contains 3.05% NaCl) P:3.00ug atom/l
-
-
CSK Standard Solution Silicate (contains 3.05% NaCl)
-
-
CSK Standard Solution nitrate (contains 3.05% NaCl)
-
-
CSK Standard Solution Phosphate (contains 3.05% NaCl) P:3.00ug atom/l
-
-
CSK Standard Solution Silicate (contains 3.05% NaCl)
-
-
CSK Standard Solution nitrate (contains 3.05% NaCl)
-
-
CSK Standard Solution Phosphate (contains 3.05% NaCl) P:3.00ug atom/l
-
-
CSK Standard Solution Silicate (contains 3.05% NaCl)
-
-
CSK Standard Solution nitrate (contains 3.05% NaCl)
-
-
CSK Standard Solution nitrate (contains 3.05% NaCl)
-
-
Sodium linear-Alkylbenzenesulfonate
-
-
Calcium Carbonate
-
-
Dibutyl Disulfide for Analysis of Sulfur Content
-
-
N-亚硝基假木贼碱 (NAB)
-
-
N-亚硝基新烟草碱 (NAT)
-
-
(R,S)-N-亚硝基新烟草碱 (NAT) D4
-
-
8.5% v/v Ethanol/Water - nominal density 0.9883g/ml
-
-
10% v/v Ethanol/Water - nominal density 0.9865g/ml
-
-
11% v/v Ethanol/Water - nominal density 0.9853g/ml
-
-
12% v/v Ethanol/Water - nominal density 0.9891g/ml
-
-
13.5% v/v Ethanol/Water - nominal density 0.9824g/ml
-
-
14% v/v Ethanol/Water - nominal density 0.9868g/ml
-
-
16% v/v Ethanol/Water - nominal density 0.9795g/ml
-
-
20% v/v Ethanol/Water - nominal density 0.9753g/ml
-
-
Analytical Volumetric Solution Hydrochloric Acid 0.01N(0.01M)
-
-
Analytical Volumetric Solution HydroChoric Acid 0.1N 0.1M
-
-
Analytical Volumetric Solution Hydrochloric Acid 1.0N 1.0M
-
-
Analytical Volumetric Solution Iodine 0.01N 0.005M
-
-
Analytical Volumetric Solution Iodine 0.01N 0.005M
-
-
Analytical Volumetric Solution Iodine 0.01M 0.02N
-
-
Analytical Volumetric Solution Iodine 0.01M 0.02N
-
-
Analytical Volumetric Solution Potassium Hydroxide 0.1N 0.1M
-
-
Analytical Volumetric Solution Potassium Hydroxide 1.0N 1.0M
-
-
Potassium thiocyanate solution 20% w/v
-
-
Potassium thiocyanate solution 5% w/v
-
-
Analytical Volumetric Solution Sodium Hydroxide 10N (10M)
-
-
Analytical Volumetric Solution Sodium Hydroxide 0.01N (0.01M)
-
-
Analytical Volumetric Solution Sodium Hydroxide 0.02N 0.02M
-
-
Analytical Volumetric Solution Sodium Hydroxide 0.1N 0.1M
-
-
Analytical Volumetric Solution Sodium Hydroxide 0.1N 0.1M
-
-
Analytical Volumetric Solution Sodium Hydroxide 0.25N 0.25M
-
-
Analytical Volumetric Solution Sodium Hydroxide 0.35465N 0.35465M
-
-
Analytical Volumetric Solution Sodium Hydroxide 0.5N 0.5M
-
-
Sodium Carbonate 20%
-
-
Analytical Volumetric Solution Sodium Thiosulphate 0.05N 0.05M
-
-
Analytical Volumetric Solution Sodium Thiosulphate 0.0551N 0.0551M
-
-
Analytical Volumetric Solution Sodium Thiosulphate 0.1N 0.1M
-
-
TISAB for wine analysis (Dir. 2676/90) for the fluoride determination by selective electrodes.
-
-
Phosphatase Test Carbonate Bi-Carbonate Buffer (Aschafenburg and Mullen Phosphatase test Buffer)
-
-
Potassium Permanganate , 5% w/v
-
-
Sodium Hydroxide, NaOH, 2% w/v
-
-
酸性橙6 NaCl ( 工业级)
-
-
Analytical Volumetric Solution Calcium chloride 0.02N 0.01M
-
-
Analytical Volumetric Solution Hydrochloric Acid 6.0N 6.0M
-
-
Mehlich #3 Final Extraction Reagent
-
-
CSK标准溶液硅酸盐(含3.05%NaCl, S1:50.0ug atom/L)
-
-
CSK标准溶液磷酸盐(含3.05%NaCl, P:1.00ug atom/L)
-
-
CSK标准溶液硅酸盐(含3.05%NaCl, Si:0.0ug atom/L)
-
-
CSK标准溶液硅酸盐(含3.05%NaCl,Si:100ug atom/L)
-
-
CSK标准溶液硝酸盐(含3.05%NaCl,N:20.00ug atom/L)
-
-
CSK标准溶液磷酸盐(含3.05%NaCl, P:0.50ug atom/L)
-
-
CSK标准溶液磷酸盐(含3.05%NaCl, P:3.00ug atom/L)
-
-
CSK标准溶液硅酸盐(含3.05%NaCl, Si:10.0ug atom/L)
-
-
CSK标准溶液硝酸盐(含3.05%NaCl,N:5.00ug atom/L)
-
-
CSK标准溶液磷酸盐(含3.05%NaCl, P:0.00ug atom/L)
-
-
CSK标准溶液硅酸盐(含3.05%NaCl, Si:200ug atom/L)
-
-
CSK栎准溶液硝酸盐(含3.05%NaCl, N:40.00ug atom/L)
-
-
CSK标准溶液磷酸盐(含3.05YoNaCl, P:2.00ug atom/L)
-
-
CSK标准溶液硅酸盐(含3.05%NaCl,. Si:5.0ug atom/L)
-
-
CSK标准溶液硝酸盐(含3.05%NaCl, N:0.00ug atom/L)
-
-
CSK标准溶液硝酸盐(含3.05%NaCl, N:10.00ug atom/L)
-
-
2,6-Toluene diisocyanate - Methoxyphenyl piperazinyl
-
-
Hexamethylene diisocyanate -Methoxyphenyl piperazinyl
-
-
Methylene bisphenyl isocyanate -Methoxyphenyl piperazinyl
-
-
Isophorone diisocyanate-Methoxyphenyl piperazinyl
-
-
ProteinA胶体金颗粒
-
-
ProteinA 包被板
-
-
3,5-二氯-2-羟基苯磺酸钠|54970-72-8|DHBS|Sodium 3,5-chloro-6-hydroxybenzenesulfonate
-
-
MPT-NAG|149263-94-5|6-甲基-2-硫代吡啶-N-乙酰-β-D-葡萄糖苷
-
-
PNP-NAG
-
-
果糖-1,6-二磷酸.3Na
-
-
葡萄糖-6-磷酸.2Na
-
-
D-葡萄糖-6-磷酸.Na
-
-
EDTA-Na2; 乙二胺四乙酸二钠二水合物
-
-
EDTA-Na4; 乙二胺四乙酸四钠盐二水合物
-
-
Zwittergent 3-14,zwitterionic detergent, powder, N-Tetradecyl-N,N-dimethyl-3-ammonio-1-propane-sulfonate
-
-
N-羟乙基乙二胺-N,N',N'-三乙酸.3Na
-
-
3-[(3-Cholamidopropyl)dimethylammonio]-2-Hydroxy-1-Propane sulfonate
-
-
氧化型辅酶I|烟酰胺腺嘌呤二核苷酸|53-84-9| β-NAD
-
-
Alkalophilic proteinase
-
-
Creatinine deiminase
-
-
D-Fructose dehydrogenase
-
-
Formaldehyde dehydrogenase
-
-
Glycerol-3-phosphate dehydrogenase
-
-
Glucose-6-phosphate dehydrogenase
-
-
Glucose-6-phosphate dehydrogenase
-
-
Glucose dehydrogenase (NAD(P)-dependent)
-
-
Glucose dehydrogenase (PQQ-dependent)
-
-
Glutamate dehydrogenase(NADP dependent)
-
-
Glutamate dehydrogenase (NAD dependent)
-
-
Glutamate dehydrogenase (NADP dependent)
-
-
Glycerol dehydrogenase
-
-
Glycerol kinase
-
-
Glycerol kinase
-
-
D-3-Hydroxybutyrate dehydrogenase
-
-
Hexokinase
-
-
Lactate dehydrogenase
-
-
D-Lactate dehydrogenase
-
-
Leucine dehydrogenase
-
-
Malate dehydrogenase
-
-
Protocatechuate 3,4-dioxygenase
-
-
Anti biotin monoclonal antibody
-
-
1,5-Anhydroglucitol-6-phosphate Dehydrogenase
-
-
3-alpha-Hydroxysteroid Dehydrogenase
-
-
12α-Hydroxysteroid Dehydrogenase
-
-
3-Hydroxybutyrate Dehydrogenase
-
-
ADP-dependent Hexokinase
-
-
ADP-dependent Hexokinase
-
-
Diaphorase (NADH)
-
-
Diaphorase (NADPH)
-
-
Glucose-6-phosphate Dehydrogenase
-
-
Glycerol Kinase
-
-
Hexokinase
-
-
Hexokinase
-
-
NAD Synthetase
-
-
Phosphofructokinase
-
-
Sphingomyelinase
-
-
Xanthine Dehydrogenase
-
-
Creatine Kinase
-
-
Lactate Dehydrogenase
-
-
Adenosine Deaminase,from calf intestine, suspension
-
-
Cholesterol Esterase,from Pseudomonas species, lyophilizate
-
-
Cholesterol Esterase, chemically modified,from Pseudomonas species, lyophilizate
-
-
Cholesterol Esterase,from Pseudomonas species, solution
-
-
Creatinase,from microorganism, lyophilizate
-
-
Creatininase,from microorganism, lyophilizate
-
-
Creatinine Deaminase,from Corynebacterium lilium, lyophilizate
-
-
Galactose 1-Dehydrogenase,from E.coli overproducer, lyophilizate
-
-
Galactose 1-Dehydrogenase,from E.coli overproducer, suspension
-
-
Galactose 1-Dehydrogenase,from Pseudomonas fluorescens, suspension
-
-
Glucose-6-phosphate Dehydrogenase (G6P-DH),rom Leuconostoc mesenteroides, expressed in E. coli,lyophilizate
-
-
Glucose-6-phosphate Dehydrogenase(G6P-DH), chemically modified,from Leuconostoc mesenteroides, expressed in E. coli,lyophilizate
-
-
Glucose-6-phosphate Dehydrogenase(G6P-DH),from Leuconostoc mesenteroides, expressed in E. coli,solution
-
-
Glucose-6-phosphate Dehydrogenase(G6P-DH),from Leuconostoc mesenteroides, lyophilizate
-
-
Glucose-6-phosphate Dehydrogenase(G6P-DH),from Leuconostoc mesenteroides, expressed in E. coli,reduced phosphate, lyophilizate
-
-
Glucose-6-phosphate Dehydrogenase(G6P-DH),from Leuconostoc mesenteroides, suspension
-
-
Glucose-6-phosphate Dehydrogenase(G6P-DH),from yeast, lyophilizate
-
-
Glutamate Dehydrogenase (NAD(P)),from E.coli overproducer, lyophilizate
-
-
Glutamate Dehydrogenase (NAD(P)),from beef liver, lyophilizate
-
-
Glutamate Dehydrogenase (NAD(P)),from beef liver, chemically modified, lyophilizate
-
-
Glutamate Dehydrogenase (NAD(P)),from beef liver, solution
-
-
Glycerol Kinase (GK),from Bacillus stearothermophilus, lyophilizate
-
-
Glycerol Kinase (GK),from Bacillus stearothermophilus, solution
-
-
Glycerol Kinase (GK), concentrated,from Bacillus stearothermophilus, solution
-
-
Glycerol-3-phosphate Dehydrogenase,from rabbit muscle, suspension
-
-
Hexokinase (HK),from yeast overproducer, lyophilizate
-
-
Hexokinase (HK), chemically modified,from yeast overproducer, lyophilizate
-
-
Hexokinase (HK),from yeast overproducer, solution
-
-
Hexokinase (HK),from yeast, lyophilizate
-
-
L-Lactate Dehydrogenase (L-LDH),from pig muscle, for use of AST/GOT-Determination according to IFCC recommendations, lyophilizate
-
-
L-Lactate Dehydrogenase (L-LDH), chemically modified,from pig muscle, for use of AST/GOT-Determination according to IFCC recommendations, solution
-
-
L-Lactate Dehydrogenase (L-LDH),from pig muscle, suspension
-
-
L-Lactate Dehydrogenase (L-LDH),chemically modified,from pig heart, lyophilizate
-
-
L-Lactate Dehydrogenase (L-LDH),from pig heart, suspension
-
-
L-Lactate Dehydrogenase (L-LDH)from rabbit muscle, suspension
-
-
Lipoprotein Lipase,from Pseudomonas species, lyophilizate
-
-
Lipoprotein Lipase, chemically modified,from Pseudomonas species, lyophilizate
-
-
Malate Dehydrogenase,from pig heart, lyophilizate
-
-
Malate Dehydrogenase, chemically modified,from pig heart, lyophilizate
-
-
Malate Dehydrogenase, IFCC Quality,from pig heart, lyophilizate
-
-
Malate Dehydrogenase, IFCC Quality,from pig heart, solution
-
-
N-Methylhydantoinase (ATP-hydrolyzing),from Arthrobacter species, expressed in E. coli, lyophilizate
-
-
NAD(P)H Dehydrogenase (quinone) (Diaphorase),from pig heart, suspension
-
-
Phosphogluconate Dehydrogenase (decarboxylating),from yeast, lyophilizate
-
-
6-Phosphogluconolactonase,from Leuconostoc mesenteroides, lyophilizate
-
-
Pyruvate Kinase,from Bacillus stearothermophilus, lyophilizate
-
-
Pyruvate Kinase,from rabbit muscle, suspension
-
-
Carboxypeptidase B, recombinant,from rat pancreas, expressed in Pichia pastoris, solution
-
-
Endoproteinase Asp-N, Sequencing Grade,from a mutant of Pseudomonas fragi, lyophilizate
-
-
Endoproteinase Glu-C,from Staphylococcus aureus V8, lyophilizate, salt-free
-
-
Endoproteinase Glu-C, Sequencing Grade,from Staphylococcus aureus V8, lyophilizate
-
-
Endoproteinase Lys-C,from Lysobacter enzymogenes, lyophilizate
-
-
Endoproteinase Lys-C, Sequencing Grade,from Lysobacter enzymogenes, lyophilizate
-
-
Endoproteinase Lys-C, Sequencing Grade,from Lysobacter enzymogenes, solution
-
-
Pronase,from Streptomyces griseus, lyophilizate
-
-
Trypsin, recombinant,from porcine pancreas, expressed in Pichia pastoris
-
-
N-Acylmannosamine 1-dehydrogenase (NAMD-E)
-
-
Creatinase (C2-AE)
-
-
Creatinase (C2-AT)
-
-
Creatininase (C1- E)
-
-
L-Fucose dehydrogenase(FDH-E)*
-
-
Glucose-6-phosphate dehydrogenase (GPD-M)
-
-
Glutaminase (GLN)
-
-
3alpha-Hydroxysteroid dehydrogenase (3aHSD-E)
-
-
Lactate dehydrogenase (LDH-P)
-
-
Lactate dehydrogenase (LDH-R)
-
-
Malate dehydrogenase (MDH-P)
-
-
Tannase (TAH)
-
-
Cholesterol dehydrogenase
-
-
Glucose-6-Phosphate Dehydrogenase
-
-
Glycerol Kinase 6495.
-
-
Hexokinase
-
-
Lactate Dehydrogenase
-
-
Lactate Dehydrogenase
-
-
Malate Dehydrogenase 1521.
-
-
Glucose Dehydrogenase (NAD Dependent)
-
-
Glucose-6-Phosphate Dehydrogenase
-
-
Hexokinase
-
-
Proteinase K
-
-
Glycerol Kinase Amano2
-
-
Cholesterol Dehydrogenase Amano 5
-
-
Glucose Dehydrogenase Amano 2
-
-
Lactate Dehydrogenase Amano 3
-
-
Malate Dehydrogenase Amano 3
-
-
克拉维酸钾|61177-45-5|Clavulanate K
-
-
Penicillinase
-
-
Penicillinase Bulk Powder
-
-
3,5-二氯苯磺酸.2Na
-
-
3,5-二氯-2-羟基苯磺酸钠 | Sodium 3,5-chloro-6-hydroxybenzenesulfonate | 54970-72-8
-
-
异硫氰酸荧光素酯, 5-FITC 5-Isothiocyanato fluorescein, CAS号 3326-32-7
-
-
NA-P-甲苯磺酰-L-精氨酸甲酯盐酸盐
-
-
1.10菲啰啉, 1,10-Phenanthroline monohydrate, 5144-89-8
-
-
无水1.10菲啰啉, 1,10-Phenanthroline, 66-71-7
-
-
玫瑰红酸钠, Sodium rhodizonate, 523-21-7
-
-
萘酚绿B,Naphthol Green B ,19381-50-1
-
-
蛋白A|Recombinant Protein A
-
-
蛋白A/G|Recombinant Protein A/G
-
-
蛋白L | Recombinant Protein L
-
-
Mannan-binding lectin (human, MBL)
-
-
Mannan-binding lectin (chicken, MBL)
-
-
Mannan-binding lectin (rat, MBL)
-
-
Mannan-binding lectin (horse/swine, MBL)
-
-
FastDNA? Spin Kit for Soil
-
-
Lactate 2-Monooxygenase (Lactate oxidase), Grade I,from Aerococcus viridans, expressed in E. coli, lyophilizate
-
-
Lactate 2-Monooxygenase (Lactate oxidase), Grade II,from Aerococcus viridans, expressed in E. coli, lyophilizate
-
-
Lactate 2-Monooxygenase (Lactateoxidase),from Pediococcus species, lyophilizate
-
-
Recombinant Cholesterol Oxidase
-
-
Glucose Oxidase Amano NA
-
-
trans-2-Nonenal 2,4-Dinitrophenylhyd razone Standard
-
-
CNA标准品
-
-
TFNA-AM标准品
-
-
TFNA标准品
-
-
2- (3-chlorophenoxy)propionamide
-
-
Methylene dithiocyanate
-
-
Naphthalic anhydride
-
-
Oxpoconazole fumarate
-
-
Quinonamid
-
-
N-Nitrosoanatabine 2,4,5,6 D4, 10ng/ul 于丙酮
-
-
Prynachlor,10ng/ul 于环己烷
-
-
USP Solution Ammonium Carbonate TS Conforms to USP 34
-
-
USP Solution Ammonium Carbonate TS Conforms to USP 34
-
-
USP Solution Ammonium Thiocyanate TS Conforms to USP 34
-
-
USP Solution Ammonium Thiocyanate TS Conforms to USP 34
-
-
USP Solution Potassium Carbonate TS Conforms to USP 34
-
-
USP Solution Potassium Carbonate TS Conforms to USP 34
-
-
USP Solution Potassium Permanganate 0.100 Normal ) Conforms to USP 34
-
-
USP Solution Potassium Permanganate 0.100 Normal ) Conforms to USP 34
-
-
European Pharmacopoeia Reagent Ammonium Carbonate Solution
-
-
European Pharmacopoeia Reagent Iodoplatinate reagent
-
-
European Pharmacopoeia Reagent Molybdovanadic reagent
-
-
European Pharmacopoeia Reagent Naphtolbenzein Solution
-
-
European Pharmacopoeia Reagent Potassium Permanganate Solution
-
-
European Pharmacopoeia Reagent Potassium Pyroantimonate Solution
-
-
European Pharmacopoeia Reagent Sodium Carbonate Solution
-
-
European Pharmacopoeia Reagent Zinc chloride Solution iodinated
-
-
European Pharmacopoeia Reagent 0.1M Ammonium thiocyanate
-
-
European Pharmacopoeia Reagent 0.02M Potassium Permanganate
-
-
European Pharmacopoeia Reagent Concentrated to make Sodium Standard sol (200ppm Na)
-
-
Morphine-3-beta-D-glucuronide-D3,100ug/mL 于甲醇/0.5%NaOH
-
-
Nandrolone,1.0mg/mL 于乙腈
-
-
Nalorphine HCl,1.0mg/mL as free base
-
-
Sildenafil,1.0mg/mL 于甲醇
-
-
Fluconazole impurity B
-
-
Fluconazole impurity C
-
-
Mab Mix creatinine kinase isoenzyme MM
-
-
MABM-INN22-IgG Human chorionic gonadotropin b-chain
-
-
Creatine Kinase-MM Monoclonal Antibody (14.15)
-
-
Creatine Kinase-MM Monoclonal Antibody (14.5)
-
-
Creatine Kinase-MM Monoclonal Antibody (14.52)
-
-
Wakopak Navi C18-5硅胶柱(235-60531)
-
-
Wakopak Navi C18-5硅胶柱(231-60533)