Abiraterone Impurity 44 CAS CATO-C4X-107044
| CAS No. | CATO-C4X-107044 |
| Molecular Formula | C19H27IO2 |
| Molecular Weight | 414.32 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 414.32 g/mol gives Abiraterone Impurity 44 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
As a process- or degradation-related impurity, Abiraterone Impurity 44 (CAS CATO-C4X-107044, C19H27IO2) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Owing to a steroid core, a hydroxyl group, an ether linkage, iodine substitution, Abiraterone Impurity 44 is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 414.32 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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.
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.
Physical & Chemical Properties
| Molecular Formula | C19H27IO2 |
| Molecular Weight | 414.32 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | >95% |
| Storage | Store at room temperature, 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | I-containing |
Related Abiraterone Standards
- Abiraterone Impurity 45 (CAS CATO-C4X-107045)
- Abiraterone Impurity 64 (CAS CATO-C4X-107064)
- Abiraterone Acetate-d4 (CAS 2122245-63-8)
- Abiraterone Impurity 65 (CAS CATO-C4X-107065)
- Abiraterone Acetate N-Oxide (CAS 2517964-85-9)
- Abiraterone Impurity 10 (CAS CATO-C4X-107010)
- Abiraterone Impurity 11 (CAS CATO-C4X-107011)
- Abiraterone Impurity 4 (CAS 2484719-26-6)
Recommended Standards
- N-(4-((4-bromophenyl)thio)phenyl)-3-methoxybenzamide (CAS 339031-24-2)
- 2-[Difluoro-(3,4,5-trifluorophenoxy)Methyl]-5-(4-ethylphenyl)-1,3-difluoro-benzene (CAS 303186-19-8)
- 8-tert-Butyl-4-(3,4-dichlorobenzoyl)-1-oxa-4-azaspiro[4.5]decane-3-carboxylic acid (CAS 1326812-81-0)
- 1-(4-Cyano-3-(trifluoromethyl)phenyl)-3-(3-cyano-4-(trifluoromethyl)phenyl)thiourea (CAS 1415564-70-3)
- Tenofovir Alafenamide Impurity 34 (CAS CATO-C4X-179734)
- Iguratimod Impurity 61 HCl (CAS CATO-C4X-182661)
- Temocapril impurity 2 (CAS CATO-C4X-31192)
- 2-Propoxythiazol-5-amine (CAS 1314355-13-9)
- GZD824 (CAS 1257628-77-5)
- 2-(5-Amino-3-fluoropyridin-2-yl)acetic acid (CAS 1214374-22-7)
- 1-{5-methyl-1-[5-(trifluoromethyl)pyridin-2-yl]-1H-pyrazol-4-yl}ethanone (CAS 1013851-91-6)
- 5-Ethyl-1-(pyridin-2-yl)-1h-pyrazole-4-carboxylic acid (CAS 1135324-06-9)
- 4-[(1,1-dioxido-1,2-benzisothiazol-3-yl)amino]butanoic acid (CAS 71054-78-9)
- Semaglutide Impurity 15 (CAS CATO-C4X-222615)
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