Naftopidil Impurity 1 CAS 2461-42-9
| CAS No. | 2461-42-9 |
| Molecular Formula | C13H12O2 |
| Molecular Weight | 200.23 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C13H12O2, Naftopidil Impurity 1 contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 200.23 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).
CATO supplies Naftopidil Impurity 1 (CAS 2461-42-9), a pharmacopoeial impurity reference standard (molecular formula C13H12O2, MW 200.23 g/mol) used for the identification and quantification of trace impurities in APIs.
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 Naftopidil Impurity 1 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 | C13H12O2 |
| Molecular Weight | 200.23 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | >95% |
| Storage | Store at 2-8°C, 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 |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
Related Naftopidil Standards
Recommended Standards
- Brivaracetam impurity 95 (CAS 2052297-73-9)
- Nabumetone Impurity 7 (CAS 56894-99-6)
- Brivaracetam Impurity 69 (CAS CATO-C4X-200769)
- 4-(Benzyloxy)Phenol (CAS 103-16-2)
- Rupatadine Impurity 23 (CAS 21636-51-1)
- Tetracaine Impurity 41 (CAS CATO-C4X-192341)
- Etoposide EP Impurity G (CAS CATO-C4X-20247)
- Ethyl 3-(2-chloro-6-fluorophenyl)-2-(isoxazol-5-yl)propanoate (CAS 477888-06-5)
- N1,N1-Dimethyl-6-(trifluoromethyl)benzene-1,3-diamine dihydrochloride (CAS 1965309-13-0)
- (2-Bromo-3-(chloromethyl)-6-(difluoromethyl)pyridin-4-yl)methanol (CAS 1806976-45-3)
- 2-Chloro-4-(3-(pyridin-4-yl)ureido)benzenesulfonyl chloride hydrochloride (CAS 820245-47-4)
- (R)-4-Amino-4-methylisoxazolidin-3-one (CAS 116810-10-7)
- 3-Chloro-4-morpholinoaniline (CAS 55048-24-3)
- Semaglutide impurity 61 (CAS CATO-C4X-222661)
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