Ritonavir Impurity A RRT 5.78 CAS 959351-57-6
| CAS No. | 959351-57-6 |
| Molecular Formula | C31H41N5O5S |
| Molecular Weight | 595.75 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Ritonavir Impurity A RRT 5.78 (CAS 959351-57-6) is a high-purity analytical reference standard with the molecular formula C31H41N5O5S and a molecular weight of 595.75 g/mol.
The molecular framework of Ritonavir Impurity A RRT 5.78 (C31H41N5O5S) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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).
CATO manufactures Ritonavir Impurity A RRT 5.78 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 | C31H41N5O5S |
| Molecular Weight | 595.75 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 |
| Degree of Unsaturation (DBE) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 5 |
| Sulfur Atoms | 1 |
Related Ritonavir Standards
- Ritonavir EP Impurity L (CAS 256328-82-2)
- Ritonavir EP Impurity H (CAS 1010809-43-4)
- Ritonavir EP Impurity D (CAS 144142-33-6)
- Ritonavir Impurity 61 (CAS CATO-C4X-175161)
- Ritonavir Impurity 45 (CAS 1010809-50-3)
- Ritonavir EP Impurity F (CAS 1010809-61-6)
- Ritonavir Impurity 46 (CAS 1010809-54-7)
- Ritonavir EP Impurity J (CAS 162849-95-8)
Recommended Standards
- Biotin-PEG8-alcohol (CAS 2182601-20-1)
- 5-(tert-Butyl)-4-((4-hydroxy-6-isopropyl-2-oxo-6-phenethyl-5,6-dihydro-2H-pyran-3-yl)thio)-2-methylphenyl pyridine-2-sulfonate (CAS 263842-97-3)
- Ensifentrine impurity 15 (CAS CATO-C4X-335315)
- Taurocholic acid 3-sulfate (CAS 67030-62-0)
- Cembrene A;Neocembrene (CAS 31570-39-5)
- 2-Fluoro-4-methoxypyrimidine (CAS 39030-96-1)
- Ethyl Isopropyl Ether (CAS 625-54-7)
- 4-(3-Hydroxypropoxy)benzaldehyde (CAS 99186-35-3)
- 2-Methyl[1,3]oxazolo[5,4-b]pyridine-6-carboxylic acid (CAS 927801-24-9)
- Benzyl 3-formyl-8-azabicyclo[3.2.1]Octane-8-carboxylate (CAS 951745-26-9)
- 6,7-Dichloro-2-(3,5-dichlorophenoxy)-3-(trifluoromethyl)quinoxaline (CAS 478034-05-8)
- 2-Phenyl-2-(1H-pyrrol-1-yl)ethan-1-ol (CAS 303756-27-6)
- 5-(Methylsulfanyl)-1,2,3,4-thiatriazole (CAS 52098-77-8)
- Neuropeptide K, porcine (CAS 106441-70-7)
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