Abiraterone Impurity 34 CAS 571-44-8
| CAS No. | 571-44-8 |
| Molecular Formula | C19H28O2 |
| Molecular Weight | 288.42 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C19H28O2, Abiraterone Impurity 34 contains a steroid core, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 288.42 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
CATO supplies Abiraterone Impurity 34 (CAS 571-44-8), a pharmacopoeial impurity reference standard (molecular formula C19H28O2, MW 288.42 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 Abiraterone Impurity 34 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 | C19H28O2 |
| Molecular Weight | 288.42 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| 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.) | 1957 |
Related Abiraterone Standards
- Abiraterone Impurity 32 (CAS 2283-82-1)
- Abiraterone Impurity 24 (CAS 90468-14-7)
- Abiraterone Impurity 56 (CAS 500019-37-4)
- Abiraterone Impurity 57 (CAS 62509-26-6)
- Abiraterone Impurity 80 (CAS CATO-C4X-107080)
- Abiraterone Impurity 48 (CAS CATO-C4X-107048)
- Abiraterone Impurity 81 (CAS 2118-31-2)
- Abiraterone Impurity 9 (CAS 566-19-8)
Recommended Standards
- Rocuronium Impurity 34 (CAS CATO-C4X-124234)
- Normethisterone (CAS 514-61-4)
- Rocuronium Impurity 46 (CAS CATO-C4X-124246)
- (8R,9S,10R,13S,14S,17S)-17-hydroxy-10,13-dimethyl-4,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthren-3(2H)-one 5-Androsten-17beta-ol-3-one 571-25-5 (CAS 571-25-5)
- Pemetrexed EP Impurity A Disodium salt (CAS CATO-C4X-172644)
- Itraconazole Impurity 98 (CAS CATO-C4X-149798)
- Lufenuron EP Impurity E (CAS 103015-79-8)
- 2-Chloro-5-methoxyphenyl Isocyanate (CAS 1067970-63-1)
- 1,10-Dichloroperfluorodecane (CAS 156186-28-6)
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- 4-(2-Fluorobenzoyl)quinoline (CAS 1706450-22-7)
- 2-(((4-Chloropyridin-2-yl)oxy)methyl)benzonitrile (CAS 1346707-15-0)
- 4-(Difluoromethyl)-3-iodo-6-methoxypicolinaldehyde (CAS 1805095-13-9)
- Peptide 440 (CAS CATO-CPTD788440)
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