Calcitriol Impurity 31 CAS 96862-25-8
| CAS No. | 96862-25-8 |
| Molecular Formula | C27H44O3 |
| Molecular Weight | 416.64 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Calcitriol Impurity 31 under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
As a process- or degradation-related impurity, Calcitriol Impurity 31 (CAS 96862-25-8, C27H44O3) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
The molecular framework of Calcitriol Impurity 31 (C27H44O3) is characterized by a steroid core, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.
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.) | 1984 |
Related Calcitriol Standards
- Calcitriol (CAS 32222-06-3)
- 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 37 (CAS CATO-C4X-151037)
- Calcitriol Impurity 38 (CAS CATO-C4X-151038)
- Calcitriol EP Impurity A (CAS 73837-24-8)
Recommended Standards
- Calcitriol impurity 41 (CAS CATO-C4X-151041)
- Calcitriol EP Impurity B (CAS 66791-71-7)
- Alfacalcidol impurity 17 (CAS 2227309-93-3)
- Calcitriol impurity 55 (CAS CATO-C4X-151055)
- Arbidol Impurity 22 (CAS CATO-C4X-112922)
- Celecoxib Impurity 52 (CAS 90090-38-3)
- Rivaroxaban EP Impurity E (CAS 1415566-28-7)
- 4-Methoxycyclohexylamine (CAS 4342-46-5)
- 2,3,7,8,12,13,17,18-octaethyl-21<I>H</I>,23<I>H</I>-cobalt porphyrin(II) (CAS 17632-19-8)
- 1-Ethyl-3-nitro-1-nitrosoguanidine (CAS 4245-77-6)
- 2-Bromo-N-(3-propoxyphenyl)acetamide (CAS 1138442-32-6)
- DG 051 (HCL SALT) (CAS 929915-58-2)
- 2-(6-oxopiperidin-2-yl)acetamide (CAS 1071661-20-5)
- Galanin-Like Peptide (human) trifluoroacetate salt (CAS 245114-99-2)
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