Sildenafil EP Impurity B CAS 1094598-75-0
Purity >95%In StockPharmacopoeial Impurity Standards
| CAS No. | 1094598-75-0 |
| Molecular Formula | C22H30N6O5S |
| Molecular Weight | 490.58 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Sildenafil EP Impurity B (CAS 1094598-75-0) is a pharmacopoeial impurity standards certified reference material from CATO. Molecular formula: C22H30N6O5S. Molecular weight: 490.58 g/mol. ISO 17034 accredited production ensures traceable purity and reliable analytical results.
Physical & Chemical Properties
| Molecular Formula | C22H30N6O5S |
| Molecular Weight | 490.58 g/mol |
| Purity | >95% |
| 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 |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1989 |
| Nitrogen Atoms | 6 |
| Sulfur Atoms | 1 |
Related Sildenafil Standards
- Sildenafil Impurity 84 (CAS CATO-C4X-112884)
- Sildenafil EP Impurity A (CAS 1391053-95-4)
- Sildenafil Impurity 23 (CAS 200575-15-1)
- Sildenafil Impurity 279 (CAS CATO-C4X-1128279)
- Sildenafil Impurity 301 (CAS CATO-C4X-1128301)
- Sildenafil Impurity 42 (CAS 2146091-79-2)
- Sildenafil Impurity 88 (CAS CATO-C4X-112888)
- Sildenafil-D3 (CAS 1126745-90-1)
Recommended Standards
- CAS 2761158-33-0 (CAS 2761158-33-0)
- 2,6-Bis(6-methoxynaphthalen-2-yl)anthracene (CAS 1065644-45-2)
- N-(2,6-dimethylphenyl)-2-((4-ethyl-5-(((6-oxo-1-phenyl-1,6-dihydropyridazin-3-yl)oxy)methyl)-4H-1,2,4-triazol-3-yl)thio)acetamide (CAS 692737-11-4)
- Vonoprazan Impurity 72 (CAS 2416241-96-6)
- Phenylephrine Hydrochloride EP Impurity C (CAS 52093-42-2(free base))
- 16,19-Dimethoxy-3-[(2-methylphenyl)methyl]-3,21-diazapentacyclo[11.8.0.0^{2,10}.0^{4,9}.0^{15,20}]henicosa-1(21),2(10),4(9),5,7,13,15(20),16,18-nonaene (CAS 860787-15-1)
- Vilanterol Impurity 74 (CAS CATO-C4X-193574)
- 2,2-Dimethyl-5-oxotetrahydrofuran-3-carboxylic acid (CAS 79-91-4)
- methyl 5-fluoro-6-methyl-pyrimidine-4-carboxylate (CAS 916213-46-2)
- Semaglutide impurity 88 (CAS CATO-C4X-222688)
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 13829788188 / jacky.chen@cato-chem.com