Abiraterone Impurity 29 CAS 115375-60-5
| CAS No. | 115375-60-5 |
| Molecular Formula | C22H29F3O5S |
| Molecular Weight | 462.52 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
Abiraterone Impurity 29 (CAS 115375-60-5) is a certified pharmaceutical impurity reference standard with the molecular formula C22H29F3O5S and a molecular weight of 462.52 g/mol.
Structurally, Abiraterone Impurity 29 (C22H29F3O5S) contains a flavonoid core, a sulfone group, a hydroxyl group, an ether linkage, fluorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 7.0, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 462.52 g/mol, it falls into the moderately-high-molecular-weight range. 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 | C22H29F3O5S |
| Molecular Weight | 462.52 g/mol |
| Purity | >95% |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1989 |
| Halogen Content | F-containing |
| Sulfur Atoms | 1 |
Related Abiraterone Standards
- Abiraterone N-oxide Sulfate (CAS 1993430-24-2)
- Abiraterone Impurity 22 (CAS 114611-53-9)
- Abiraterone Impurity 31 (CAS 2484719-17-5)
- Abiraterone Impurity 35 (CAS 2484719-13-1)
- Abiraterone Impurity 73 (CAS CATO-C4X-107073)
- Abiraterone Impurity 17 (CAS CATO-C4X-107017)
- Abiraterone 3-Nitrobenzoate Impurity (CAS CATO-C4X-107071)
- Abiraterone Impurity 70 (CAS CATO-C4X-107070)
Recommended Standards
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- Methyl 2-methyl-4-(3-nitrophenyl)-6-(((1-phenyl-1H-imidazol-2-yl)thio)methyl)-1,4-dihydropyridine-3-carboxylate (CAS 478040-17-4)
- Sivelestat Impurity 9 (CAS 1094231-79-4)
- Ozenoxacin Impurity 61 (CAS CATO-C4X-279661)
- Axitinib impurity 46 (CAS 261953-36-0)
- Relugolix Impurity 167 (CAS CATO-C4X-2429167)
- Methyl 3-(1-ethyl-3-methyl-1H-pyrazol-4-yl)propiolate (CAS 1354706-95-8)
- Propoxycaine Hydrochloride (CAS 550-83-4)
- 2,4-Di-tert-butyl-5-cyclopropoxypyridine (CAS 1243453-12-4)
- 2,3',4',5-Tetrabromodiphenyl ether (CAS 446254-39-3)
- 3-Bromo-1-methyl-5-(2-methyl-1H-imidazol-1-yl)-1H-1,2,4-triazole (CAS 1630763-48-2)
- 1-Methyl-2,3-dihydro-1H-indazol-5-amine (CAS 575473-25-5)
- Neuropeptide K, porcine (CAS 106441-70-7)
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