Cyproterone Acetate EP Impurity E CAS 17184-05-3
| CAS No. | 17184-05-3 |
| Molecular Formula | C24H30O5 |
| Molecular Weight | 398.49 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Cyproterone Acetate EP Impurity E 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.
As a process- or degradation-related impurity, Cyproterone Acetate EP Impurity E (CAS 17184-05-3, C24H30O5) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Based on its molecular formula C24H30O5, Cyproterone Acetate EP Impurity E contains a flavonoid core, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 398.49 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
Physical & Chemical Properties
| Molecular Formula | C24H30O5 |
| Molecular Weight | 398.49 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, 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 |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1961 |
Related Cyproterone Standards
- Cyproterone Acetate EP Impurity J (CAS 15423-97-9)
- Cyproterone Impurity 5 (CAS 30337-71-4)
- Cyproterone Impurity 8 (CAS CATO-C4X-16018)
- Cyproterone Acetate EP Impurity I (CAS 13698-49-2)
- Cyproterone Acetate EP Impurity B (CAS CATO-C4X-16013)
- Cyproterone Acetate EP Impurity A (CAS 2701-50-0)
- Cyproterone Acetate (CAS 427-51-0)
- Cyproterone Acetate-D3 (CAS 427-51-0 (non-labelled))
Recommended Standards
- (1S)-1-[(2R,3R,4R,5S)-3-(benzoyloxy)-4,5-dihydroxy-4-methyloxolan-2-yl]ethyl benzoate (CAS 1638743-98-2)
- Undecanoic acid, 11-[[(1,1-dimethylethoxy)carbonyl]amino]-, 2,5-dioxo-1-pyrrolidinyl ester (CAS 176242-02-7)
- 3'',5,5'-Triallyl-[1,1':3',1''-terphenyl]-2,2',4''-triol (CAS 155709-40-3)
- BnO-PEG4-Boc (CAS 1807503-89-4)
- Ezetimibe Impurity 42 (CAS 189028-95-3)
- Baricitinib Impurity 72 (CAS CATO-C4X-226072)
- Piroxicam EP Impurity H (CAS 24683-21-4)
- tert-Butyl (2-fluoro-4-(hydroxymethyl)phenyl)carbamate (CAS 708261-13-6)
- 22236-08-4 3-(Difluoromethoxy)aniline 3-AMINO-ALPHA,ALPHA-DIFLUOROANISOLE 3-DIFLUOROMETHOXY-PHENYLAMINE AKOS BBV-000549 AS00415 BUTTPARK 45\03-43 OTAVA-BB 1779636 (CAS 22236-08-4)
- 4-Hydroxy Ipratropium Bromide (CAS CATO-C4X-166521)
- 1-[(4-Chlorophenyl)methoxy]-3-[(1E)-(dimethylamino)methylidene]urea (CAS 338781-14-9)
- 2-fluoro-4-[3-(trifluoromethoxy)phenyl]aniline (CAS 1035689-62-3)
- 2-(2,5-Dichlorophenoxy)ethan-1-amine hydrochloride (CAS 1211428-89-5)
- (Leu31,Pro3?)-Neuropeptide Y (human, rat) trifluoroacetate salt (CAS 132699-73-1)
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