Sildenafil Impurity 39 CAS 76424-56-1
Purity >95%In StockPharmacopoeial Impurity Standards
| CAS No. | 76424-56-1 |
| Molecular Formula | C7H12N4O |
| Molecular Weight | 168.20 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
High-purity Sildenafil Impurity 39 (CAS 76424-56-1) pharmacopoeial impurity standards reference standard. Molecular formula: C7H12N4O. Molecular weight: 168.20 g/mol. Produced by CATO, one of China's leading reference material manufacturers, with COA documentation and global shipping.
Physical & Chemical Properties
| Molecular Formula | C7H12N4O |
| Molecular Weight | 168.20 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1978 |
| Nitrogen Atoms | 4 |
Related Sildenafil Standards
- Sildenafil Impurity 286 (CAS CATO-C4X-1128286)
- Sildenafil Impurity 63 (CAS 247584-81-2)
- Sildenafil Impurity 40 (CAS 1185292-79-8)
- Sildenafil Pyrimidine Impurity (CAS 1346600-82-5)
- Sildenafil Impurity 42 (CAS 1441-87-8)
- Sildenafil Impurity 62 (CAS 116833-23-9)
- Sildenafil Impurity 3 (CAS 139756-02-8)
- Sildenafil Impurity 47 (CAS 247583-78-4)
Recommended Standards
- Trimethylmelamine (CAS 2827-46-5)
- Caffeine EP Impurity E (CAS 20041-90-1)
- N-(5-Methyl-1H-1,2,4-triazol-3-yl)butyramide (CAS 62400-13-9)
- Levocetirizine amide impurity HCl (CAS 909779-33-5（free base）)
- Rabeprazole Impurity N4 (CAS 2514958-53-1)
- 4-Ethyl-N-(furan-2-ylmethyl)aniline (CAS 1019520-31-0)
- 2-(4-Nitrophenyl)-1,2,3,4-tetrahydroquinolin-4-ol (CAS 918165-53-4)
- Ethyl 2-(Benzofuran-5-yl)acetate (CAS 142935-51-1)
- tert-Butyl 2-(chloromethyl)-2-(hydroxymethyl)pyrrolidine-1-carboxylate (CAS 1415564-60-1)
- Semaglutide impurity 289 (CAS CATO-C4X-2226289)
Why CATO?
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