Cyproterone Acetate EP Impurity D CAS CATO-C4X-16012
| CAS No. | CATO-C4X-16012 |
| Molecular Formula | C24H31ClO5 |
| Molecular Weight | 434.95 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a process- or degradation-related impurity, Cyproterone Acetate EP Impurity D (CAS CATO-C4X-16012, C24H31ClO5) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Based on its molecular formula C24H31ClO5, Cyproterone Acetate EP Impurity D contains a flavonoid core, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 434.95 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
CATO manufactures Cyproterone Acetate EP Impurity D 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 | C24H31ClO5 |
| Molecular Weight | 434.95 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Cl-containing |
Related Cyproterone Standards
- Cyproterone Acetate EP Impurity G (CAS 23814-84-8)
- Cyproterone Acetate Impurity 2 (CAS 65423-26-9)
- Cyproterone Acetate-D3 (CAS 427-51-0 (non-labelled))
- Cyproterone Acetate (CAS 427-51-0)
- Cyproterone Acetate EP Impurity C (CAS 17183-98-1)
- Cyproterone Acetate EP Impurity B (CAS CATO-C4X-16013)
- Cyproterone Acetate EP Impurity I (CAS 13698-49-2)
- Cyproterone Acetate EP Impurity J (CAS 15423-97-9)
Recommended Standards
- Halcinonide Impurity 9 (CAS CATO-C4X-27959)
- Toremifene Impurity 3 (CAS 1798421-30-3)
- Halcinonide Impurity N3 (CAS 2414269-43-3)
- (E)-2,2-Dimethyl-propanoic Acid 4-[4-Chloro-1-(4-hydroxyphenyl)-2-phenyl-1-butenyl]phenyl Ester (CAS 177748-18-4)
- Losartan Impurity 40 (CAS CATO-C4X-168340)
- Hyoscine Butylbromide EP Impurity C Bromide (CAS 155-41-9)
- Cilastatin Impurity 21 (CAS 107872-23-1)
- 7-Methoxy-2-methyl-2,3-dihydrobenzofuran-3-amine (CAS 1247833-61-9)
- Methyl (3R,4S)-4-(4-fluorophenyl)pyrrolidine-3-carboxylate (CAS 1187930-65-9)
- N-Dansyl 1,3-diaminopropane, 98% (CAS 34987-20-7)
- 6-Fluoro-5-methoxy-1H-pyrrolo[2,3-b]pyridine (CAS 1638761-05-3)
- 4,4-Dimethyl-4,5-dihydrothiazol-2-amine hydrochloride (CAS 2271475-38-6)
- 3-(4-Methoxyphenyl)thiazolidin-4-one 1-oxide (CAS 109052-42-8)
- Neuropeptide Y (18-36) (CAS 114495-97-5)
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