Avanafil Impurity 135 CAS CATO-C4X-1118135
| CAS No. | CATO-C4X-1118135 |
| Molecular Formula | C24H26Cl2N4O4S |
| Molecular Weight | 537.46 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C24H26Cl2N4O4S, Avanafil Impurity 135 contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 537.46 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).
Avanafil Impurity 135 (CAS CATO-C4X-1118135) is a certified pharmaceutical impurity reference standard with the molecular formula C24H26Cl2N4O4S and a molecular weight of 537.46 g/mol.
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 Avanafil Impurity 135 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 | C24H26Cl2N4O4S |
| Molecular Weight | 537.46 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 1 |
Related Avanafil Standards
- Avanafil Impurity 150 (CAS CATO-C4X-1118150)
- Avanafil Impurity 59 (CAS 372117-51-6)
- Avanafil Impurity 157 (CAS CATO-C4X-1118157)
- Avanafil Impurity 158 (CAS CATO-C4X-1118158)
- Avanafil Impurity 144 (CAS CATO-C4X-1118144)
- Avanafil Impurity 15 (CAS CATO-C4X-111815)
- Avanafil Impurity 118 (CAS CATO-C4X-1118118)
- Avanafil Impurity 24 (CAS CATO-C4X-111824)
Recommended Standards
- 4-{[1,1'-biphenyl]-4-yl}-2-(4-{[4,6-bis(trifluoromethyl)pyridin-2-yl]oxy}phenyl)pyrimidine (CAS 477862-18-3)
- Dynemicin A (CAS 124412-57-3)
- (S)-5-tert-Butyl 6-methyl 2-iodo-3-((2-(trimethylsilyl)ethoxy)methyl)-6,7-dihydro-3H-imidazo[4,5-c]pyridine-5,6(4H)-dicarboxylate (CAS 2243987-13-3)
- 1-(4-(4-Amino-6-(4-methoxyphenyl)furo[2,3-d]pyrimidin-5-yl)phenyl)-3-(2-fluoro-5-(trifluoromethyl)phenyl)urea (CAS 501693-25-0)
- Norepinephrine Impurity 95 (CAS CATO-C4X-151495)
- Granisetron EP Impurity A HCL (CAS 127472-42-8（free base）)
- Ziprasidone Impurity 15 (CAS CATO-C4X-124015)
- 4-(4-Chlorophenyl)-5-(methylsulfonyl)-1H-thieno[2,3-c]pyrazol-3-amine (CAS 1713174-46-9)
- 3-(Methylamino)pyrazine-2-carbonitrile (CAS 63352-06-7)
- 4-Amino-1-(hydroxymethyl)cyclohexan-1-ol (CAS 1202412-08-5)
- 1-(3-(1H-Imidazol-4-yl)propyl)-3-(2-(benzyloxy)ethyl)guanidine (CAS 106668-51-3)
- 3-Fluoro-4-methoxyphenyl acetate (CAS 946833-20-1)
- (R)-1-(2-Fluorophenyl)ethylamine (CAS 185545-90-8)
- Fragment-[7-31]-Liraglutide (CAS CATO-C4X-199239)
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