Calcitriol Impurity 29 CAS 96614-28-7
| CAS No. | 96614-28-7 |
| Molecular Formula | C27H44O3 |
| Molecular Weight | 416.64 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Calcitriol Impurity 29 (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).
CATO supplies Calcitriol Impurity 29 (CAS 96614-28-7), a pharmacopoeial impurity reference standard (molecular formula C27H44O3, MW 416.64 g/mol) used for the identification and quantification of trace impurities in APIs.
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 29 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 | C27H44O3 |
| Molecular Weight | 416.64 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| 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 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)
- Calcitriol impurity 41 (CAS CATO-C4X-151041)
- Paricalcitol Impurity 9 (CAS 216161-87-4)
- Calcitriol EP Impurity B (CAS 66791-71-7)
- Biapenem impurity 27 (CAS CATO-C4X-227327)
- Articaine EP Impurity F HCl (CAS CATO-C4X-19127)
- Parecoxib Impurity 35 (CAS 1373038-63-1)
- Buthiazide (CAS 2043-38-1)
- (1S,3S)-rel-3-{[(tert-Butoxy)carbonyl]amino}-1-methylcyclohexane-1-carboxylic acid (CAS 1702382-59-9)
- (4-Methoxy-6-methyl-2-pyrimidinyl)thiourea (CAS 93744-72-0)
- 2-(Hydroxymethyl)-5-methoxyphenol (CAS 59648-29-2)
- 3,7-Dichloro-1-(4-methoxybenzyl)quinoxalin-2(1H)-one (CAS 1021179-88-3)
- 7-[(Benzyloxy)carbonyl]-7-azaspiro[3.5]nonane-2-carboxylic acid (CAS 1227610-19-6)
- Allo-Thr5-Tirzepatide (CAS CATO-CPTD788934)
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