Customization: | Available |
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CAS No.: | 151533-12-1 |
Formula: | 151533-12-1 |
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Package | carton drum with two plastic bags inside |
Net weight | 1kg/Bag; 25KG/Drum |
Storage | Sealed in cool and dry place to avoid moisture and light |
Shelf life | 2 years when properly stored |
Lead time | 1~3 days after confirmation |
Test Items | Test Standard | |
Appearance | White to light yellow crystalline powder, odorless, slightly soluble in water. | |
Identification | Spectroscopic identification test,infrared spectroscopy: The infrared absorption spectrum should be consistent with the reference map. |
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Calcium 5mg/ml solution meets the reguirem. | ||
The retention time of the major peak of the sample solution correspond to that of the standard solution, as obtained in the assay. | ||
Chloridion | ≤0.5% | |
Calcium | 7.0%~8.5% (on the anhydrous and solvent-free basis) | |
D-5-methyltetrahydrofolic acid (Isomer) | ≤1.0% | |
Impurities | Aminobenzoylglutamic acid | ≤0.5% |
4-Hydroxy-5-methyltetrahydrofolic acid | ≤1.0% | |
(6R)-Mefox+(6S)-Mefox | ≤1.0% | |
Tetrahydrofolic acid | ≤0.5% | |
7,8-Dihydrofolic acid | ≤0.5% | |
Folic acid | ≤0.5% | |
5,10-Methylenetetrahydrofolic acid | ≤0.5% | |
5-Methyltetrahydrop teroic acid | ≤0.5% | |
Dimethyltetrahydrofolic acid | ≤0.15% | |
Total impurities | ≤2.5% | |
Residual solvents | 2-Propa nol | ≤0.5% |
Ethanol | ≤0.5% | |
Water | 6.0%~17.0% | |
Heavy metals | ≤20ppm | |
Microbial limits | Total plate count ≤1000cfu/g | |
Yeast& Mould ≤100cfu/g | ||
Salmonella, Escherichia coli,Staphylococcus aureus, Pseudomonas aeruginosa, Candida albicans, Clostridia: Negative | ||
Assay (HPLC) | 95.0%~102.0% (on the anhydrous and solvent-free basis) |