Enzalutamide Impurity 37 CAS 1705583-65-8
| CAS No. | 1705583-65-8 |
| Molecular Formula | C9H4F3NO2S |
| Molecular Weight | 247.19 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Enzalutamide Impurity 37 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.
CATO supplies Enzalutamide Impurity 37 (CAS 1705583-65-8), a pharmacopoeial impurity reference standard (molecular formula C9H4F3NO2S, MW 247.19 g/mol) used for the identification and quantification of trace impurities in APIs.
Based on its molecular formula C9H4F3NO2S, Enzalutamide Impurity 37 contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, fluorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 247.19 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 | C9H4F3NO2S |
| Molecular Weight | 247.19 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| 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.) | 1994 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Enzalutamide Standards
- Enzalutamide Impurity 36 (CAS CATO-C4X-101636)
- Enzalutamide Impurity 46 (CAS CATO-C4X-101646)
- Enzalutamide Impurity 6 (CAS 1332524-02-3)
- Enzalutamide Impurity 54 (CAS CATO-C4X-101654)
- Enzalutamide Impurity N2 (CAS 1289942-66-0)
- Enzalutamide Impurity 68 (CAS CATO-C4X-101668)
- Enzalutamide Impurity 15 (CAS 1895865-10-7)
- Enzalutamide Impurity 5 (CAS 179232-29-2)
Recommended Standards
- N-(Trifluoromethylthio)phthalimide (CAS 719-98-2)
- N-(3,4-Difluorophenyl)-1H-pyrazolo[3,4-d]pyrimidin-4-amine (CAS 1021023-70-0)
- Diethyl (4,6-diamino-1,3,5-triazin-2-yl)phosphonate (CAS 4230-55-1)
- N-(2,4-Difluorophenyl)-1H-pyrazolo[3,4-d]pyrimidin-4-amine (CAS 1021219-67-9)
- Osimertinib impurity 59 (CAS CATO-C4X-204559)
- Indapamide Impurity 33 (CAS 22160-13-0)
- Flecainide Impurity 5 (CAS CATO-C4X-25465)
- 2-(Benzyloxy)-3-methylbenzoic acid (CAS 186419-27-2)
- Ethyl 5,5-dimethyl-4,5,6,7-tetrahydro-1H-indole-2-carboxylate (CAS 2120341-39-9)
- 5-Amino-2-(tert-butyl)-4-chloropyridazin-3(2H)-one (CAS 84956-72-9)
- (4-Ethynylphenyl)(phenyl)methanone (CAS 119754-17-5)
- (S)-Methyl 2-(1-aminoethyl)benzoate (CAS 1213616-69-3)
- o-Nitrophenyl α-D-Galactopyranoside (CAS 19887-85-5)
- Semaglutide impurity 54 (CAS CATO-C4X-222654)
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