L-5-甲基四氢叶酸钙; L-甲基叶酸盐

Calcium L-5-Methyltetrahydrofolate

英文别名：

L-5-Methyltetrahydrofolic acid, calcium salt
L-Methyltetrahydrofolate, calcium salt
L-Methylfolate, calcium
L-5-MTHF-Ca

CAS number

151533-22-1

分子式：

C₂₀H₂₃CaN₇O₆ (无水)

结构式：

(anhydrous form)

分子量：

497.5 (anhydrous form)

功能用途

营养添加剂；保健品原料

Assay

≥95.0%

Calcium

7.0~8.5%

Identification

The main peak RT is the same with that of the standard (HPLC)

Water(KF)

≤17.0%

D-isomer

≤2.0%

Heavy metals (as Pb)

≤20ppm

Appearance

White to light yellowish crystalline powder

Identification(IR)

Meets the requirements

Assay(on dry basis by HPLC)

≥97.0%

Specific rotation (C=1.5, H2O)

+38.5 ~ +42°

Calcium

7.0~8.5%

Chloride

≤0.5%

Residue on ignition

≤0.2%

Water(KF)

≤17.0%

D-isomer

≤1.0%

Heavy metals (as Pb)

≤10ppm

Arsenic

≤1ppm

Boron

≤100ppm

Appearance

Pale yellow crystalline powder