Calcitriol CAS 32222-06-3
| CAS No. | 32222-06-3 |
| Molecular Formula | C27H44O3 |
| Molecular Weight | 416.64 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 416.64 g/mol gives Calcitriol distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Calcitriol (CAS 32222-06-3) is a high-purity analytical reference standard with the molecular formula C27H44O3 and a molecular weight of 416.64 g/mol.
Calcitriol (C27H44O3) contains a steroid core, a hydroxyl group, an ether linkage. Its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C27H44O3 |
| Molecular Weight | 416.64 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | >95% |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1966 |
Related Calcitriol Standards
- Calcitriol Impurity 25 (CAS 134523-84-5)
- Calcitriol Impurity 26 (CAS 57102-09-7)
- Calcitriol Impurity 27 (CAS CATO-C4X-151027)
- Calcitriol Impurity 29 (CAS 96614-28-7)
- Calcitriol Impurity 31 (CAS 96862-25-8)
- Calcitriol impurity 37 (CAS CATO-C4X-151037)
- Calcitriol Impurity 38 (CAS CATO-C4X-151038)
- Calcitriol EP Impurity A (CAS 73837-24-8)
Recommended Standards
- Alfacalcidol impurity 17 (CAS 2227309-93-3)
- Paricalcitol Impurity 9 (CAS 216161-87-4)
- Paricalcitol Impurity 8 (CAS CATO-C4X-13878)
- Paricalcitol Impurity 5 (CAS CATO-C4X-13875)
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Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com