Calcifediol
CAS: 19356-17-3
Category: Steroids
| Purity | USP Grade ≥98%, 20 mcg Capsules, EP Reference Standard |
| Molecular Formula | C27H44O2 |
| Molecular Weight | 400.64 |
| Appearance | white to off-white crystalline powder |
| Packaging | 1kg/aluminum foil bag or 100g/glass bottle, often under an inert atmosphere. |
| Testing Indicators | Appearance — Visual inspection; Identification — IR, UV (265 nm); Purity — RP-HPLC; Specific rotation — Polarimetry; Heavy metals — ICP-MS; Residual solvents — GC; Microbial limits — Pour plate; Vitamin D isomers — HPLC; Assay — Spectrophotometry. |
| Storage Notes | Store in a tightly sealed, light-resistant container under an inert atmosphere at 2-8°C (refrigerated), protected from air and light. |
| Lead Time | days |
A precursor to calcitriol (Vitamin D hormone) used as the active pharmaceutical ingredient (API) for treating Vitamin D deficiency and metabolic bone diseases.