Ritonavir EP Impurity D CAS 144142-33-6
Purity >95%In StockPharmacopoeial Impurity Standards
| CAS No. | 144142-33-6 |
| Molecular Formula | C28H30N4O5S2 |
| Molecular Weight | 566.69 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Ritonavir EP Impurity D (CAS 144142-33-6) is a pharmacopoeial impurity standards certified reference material from CATO. Molecular formula: C28H30N4O5S2. Molecular weight: 566.69 g/mol. ISO 17034 accredited production ensures traceable purity and reliable analytical results.
Physical & Chemical Properties
| Molecular Formula | C28H30N4O5S2 |
| Molecular Weight | 566.69 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) | 16.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1998 |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 2 |
Related Ritonavir Standards
- Ritonavir Impurity 61 (CAS CATO-C4X-175161)
- Ritonavir EP Impurity H (CAS 1010809-43-4)
- Ritonavir EP Impurity F (CAS 1010809-61-6)
- Ritonavir Impurity A RRT 5.78 (CAS 959351-57-6)
- Ritonavir EP Impurity L (CAS 256328-82-2)
- Ritonavir EP Impurity J (CAS 162849-95-8)
- Ritonavir EP Impurity K (CAS 1010809-39-8)
- Ritonavir EP Impurity B (CAS 765875-58-9)
Recommended Standards
- Formoterol impurity 146 (CAS CATO-C4X-1525146)
- Tepotinib impurity 6 (CAS CATO-C4X-33746)
- Formoterol impurity 123 (CAS CATO-C4X-1525123)
- Vonoprazan Fumarate Impurity 35 (CAS CATO-C4X-102035)
- Cefamandole Impurity 9 (CAS CATO-C4X-12219)
- 515140-26-8 A828636 [4-(cyclopropylcarbamoyl)phenyl]boronic acid [4-[(cyclopropylamino)-oxomethyl]phenyl]boronic acid (CAS 515140-26-8)
- 3-(Pyridin-3-yl)prop-2-en-1-amine (CAS 130025-03-5)
- 2-Chloro-4-methyl-6-nitrobenzonitrile (CAS 2112-15-4)
- 1-Ethyl-2-methyl-1H-imidazole-4-sulfonyl chloride (CAS 1344296-01-0)
- Semaglutide impurity 48 (CAS CATO-C4X-222648)
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