L-5-Methyltetrahydrofolate Calcium CAS 151533-22-1
| CAS No. | 151533-22-1 |
| Molecular Formula | C20H23N7O6 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, L-5-Methyltetrahydrofolate Calcium (C20H23N7O6Ca) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 13.0, corresponding to approximately 13 ring(s) or double-bond equivalent(s). With a molecular weight of 497.52 g/mol, it falls into the moderately-high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
L-5-Methyltetrahydrofolate Calcium (CAS 151533-22-1) is a high-purity analytical reference standard with the molecular formula C20H23N7O6Ca and a molecular weight of 497.52 g/mol.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), L-5-Methyltetrahydrofolate Calcium meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C20H23N7O6 Ca |
| Molecular Weight | 497.52 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | >85% |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2000 |
| Nitrogen Atoms | 7 |
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Recommended Standards
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- 2-Bromo-1-(4,5-dichloro-2-methoxyphenyl)ethanone (CAS 1499375-92-6)
- 1-(4-Methoxyphenyl)-3-methylbutan-2-one (CAS 61173-96-4)
- Semaglutide Impurity 155 (x TFA Salt) (CAS CATO-C4X-2226155)
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