Calcitriol Impurity 15 CAS 132054-64-9
| CAS No. | 132054-64-9 |
| Molecular Formula | C33H58O3Si |
| Molecular Weight | 530.90 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a process- or degradation-related impurity, Calcitriol Impurity 15 (CAS 132054-64-9, C33H58O3Si) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Calcitriol Impurity 15 (C33H58O3Si) contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. 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).
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.
CATO manufactures Calcitriol Impurity 15 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.
Physical & Chemical Properties
| Molecular Formula | C33H58O3Si |
| Molecular Weight | 530.90 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1994 |
Related Calcitriol Standards
- Calcitriol Impurity 16 (CAS 98728-26-8)
- Calcitriol Impurity 12 (CAS CATO-C4X-151012)
- Calcitriol Impurity 21 (CAS 115648-67-4)
- Calcitriol Impurity 22 (CAS 139239-33-1)
- pre-Calcitriol PTAD Adduct (impurity) (CAS 86307-31-5)
- Calcitriol Impurity 66 (CAS CATO-C4X-151066)
- Pro-Calcitriol PTAD Adduct (CAS 137342-95-1)
- Calcitriol EP Impurity C(Mixture of Diastereomers) (CAS 86307-44-0)
Recommended Standards
- 1-[4-(4-Chlorophenyl)-1,3-thiazol-2-yl]-5-(trifluoromethyl)-N-{[3-(trifluoromethyl)phenyl]methyl}-1H-pyrazole-4-carboxamide (CAS 321998-55-4)
- Octadecyl 3-(3,5-Di-Tert-Butyl-4-Hydroxyphenyl)Propionate (CAS 2082-79-3)
- Bis(acetonitrile)palladium(II) p-toluenesulfonate (CAS 114757-66-3)
- 5-{4-[3,5-Bis(trifluoromethyl)benzoyl]piperazino}-4-chloro-2-phenylpyridazin-3(2H)-one (CAS 281223-86-7)
- Gefitinib Impurity 53 (CAS CATO-C4X-111753)
- Sunitinib Impurity 19 (CAS 356068-97-8)
- Diphenoxylate Impurity 4 (CAS 84255-02-7)
- 1,3,3-Trimethyl-5-nitroindolin-2-imine (CAS 803739-05-1)
- 3-(Difluoromethyl)-6-formyl-5-methylpicolinonitrile (CAS 1804416-49-6)
- (5-Methyl-1H-indol-6-yl)boronic acid (CAS 1361234-23-2)
- 2-(6-Chloro-2-methyl-1H-indol-3-yl)acetic acid (CAS 6127-21-5)
- Methyl 2-piperidinecarboxylate (CAS 41994-45-0)
- 1-Ethyl-3,5-dimethyl-1H-pyrazole-4-carbonyl chloride (CAS 1171610-58-4)
- Semaglutide Impurity 139 (CAS CATO-C4X-2226139)
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