Sildenafil Impurity 42 CAS 1441-87-8
Purity >95%In StockPharmacopoeial Impurity Standards
| CAS No. | 1441-87-8 |
| Molecular Formula | C7H5ClO2 |
| Molecular Weight | 156.57 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
High-purity Sildenafil Impurity 42 (CAS 1441-87-8) pharmacopoeial impurity standards reference standard. Molecular formula: C7H5ClO2. Molecular weight: 156.57 g/mol. Produced by CATO, one of China's leading reference material manufacturers, with COA documentation and global shipping.
Physical & Chemical Properties
| Molecular Formula | C7H5ClO2 |
| Molecular Weight | 156.57 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | >95% |
| Storage | Store at 2-8°C, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | Cl-containing |
Related Sildenafil Standards
- Sildenafil Impurity 64 (CAS 59023-32-4)
- Sildenafil Impurity 67 (CAS 3312-58-1)
- Sildenafil Impurity 40 (CAS 1185292-79-8)
- Sildenafil Impurity 286 (CAS CATO-C4X-1128286)
- Sildenafil Impurity 39 (CAS 76424-56-1)
- Sildenafil Impurity 63 (CAS 247584-81-2)
- Sildenafil Pyrimidine Impurity (CAS 1346600-82-5)
- Sildenafil Impurity 62 (CAS 116833-23-9)
Recommended Standards
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- Avatrombopag Impurity 77 (CAS CATO-C4X-223477)
- H-Leu-Leu-Ala-OH (CAS 20274-80-0)
- Cyanomethyl [3-(trimethoxysilyl)propyl] trithiocarbonate (CAS 1050502-37-8)
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- (S)-N-(1-(1H-Benzo[d]imidazol-2-yl)-4-(2-chloroacetimidamido)butyl)-[1,1'-biphenyl]-4-carboxamide (CAS 1802637-39-3)
- Insulin Degludec Impurity 13 (CAS CATO-C4X-215713)
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