Abiraterone Impurity 33 CAS CATO-C4X-107033
| CAS No. | CATO-C4X-107033 |
| Molecular Formula | C24H30ClN |
| Molecular Weight | 367.95 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Owing to a nitrogen-containing heterocyclic scaffold, a nitrile group, chlorine substitution, Abiraterone Impurity 33 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 367.95 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
As a process- or degradation-related impurity, Abiraterone Impurity 33 (CAS CATO-C4X-107033, C24H30ClN) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
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 | C24H30ClN |
| Molecular Weight | 367.95 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related Abiraterone Standards
- Abiraterone Impurity 19 (CAS 2484719-16-4)
- Abiraterone Impurity 12 (CAS CATO-C4X-107012)
- Abiraterone Impurity 41 (CAS CATO-C4X-107041)
- Abiraterone Impurity 43 (CAS CATO-C4X-107043)
- Abiraterone Impurity 59 (CAS CATO-C4X-107059)
- Abiraterone Impurity 60 (CAS 1868064-51-0)
- Abiraterone Impurity 63 (CAS CATO-C4X-107063)
- Abiraterone Impurity 24 (CAS 1045-71-2)
Recommended Standards
- N-Desmethyl Prochlorperazine-d8 Dimaleate (CAS 1246817-68-4)
- rel-2,5-Bis(iodomethyl)-1,4-dioxane (CAS 56127-59-4)
- 2,9-Dibromo-1,10-phenanthroline-5,6-dione (CAS 943861-95-8)
- 5,6-Dichloro-8-iodoquinoline-3-carboxylic acid (CAS 2417721-70-9)
- Pyrimethamine EP Impurity A (CAS 55474-40-3)
- Thioctic acid Impurity 97 (CAS CATO-C4X-152697)
- Semaglutide impurity 249 (CAS CATO-C4X-2226249)
- Fmoc-N-Me-D-His(Boc)-OH (CAS 2044710-02-1)
- 1-(4-Bromophenyl)-2-(isobutylthio)ethan-1-one (CAS 1155554-97-4)
- Methyl 3-amino-1-cyano-4-fluoro-1-(4-fluorophenyl)-1H-indene-2-carboxylate (CAS 116616-96-7)
- 1-(4-Isopropylphenyl)-3-methylbutan-1-one (CAS 1154333-43-3)
- Ethyl 5-chloro-1-((2-(trimethylsilyl)ethoxy)methyl)-1H-pyrazolo[3,4-c]pyridine-3-carboxylate (CAS 2201100-88-9)
- [(1S)-2-Methylidenecyclopropyl]methanol (CAS 139242-82-3)
- Brain Injury Derived Neurotrophic Peptide (H-3914.0001) (CAS 148330-12-5)
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