Ritonavir EP Impurity Q CAS 1414933-82-6
| CAS No. | 1414933-82-6 |
| Molecular Formula | C37H48N6O5S2 |
| Molecular Weight | 720.94 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Ritonavir EP Impurity Q (C37H48N6O5S2) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).
As a process- or degradation-related impurity, Ritonavir EP Impurity Q (CAS 1414933-82-6, C37H48N6O5S2) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.
CATO manufactures Ritonavir EP Impurity Q 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 | C37H48N6O5S2 |
| Molecular Weight | 720.94 g/mol |
| Purity | >90% |
| 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) | 17.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
| Nitrogen Atoms | 6 |
| Sulfur Atoms | 2 |
Related Ritonavir Standards
- Ritonavir (CAS 155213-67-5)
- Ritonavir Geo-isomer (CAS 959315-21-0)
- Ritonavir EP Impurity N (CAS 202816-62-4)
- Ritonavir EP Impurity O (CAS 1414933-81-5)
- Ritonavir EP Impurity R (CAS 1414933-80-4)
- Ritonavir impurity 48 (CAS CATO-C4X-175148)
- Ritonavir Impurity 56 (CAS CATO-C4X-175156)
- Ritonavir Dehydro (CAS 1156504-13-0)
Recommended Standards
- Nonacyclo[43.3.1.13,7.19,13.115,19.121,25.127,31.133,37.139,43]hexapentaconta-1(49),3,5,7(56),9,11,13(55),15,17,19(54),21,23,25(53),27,29,31(52),33,35,37(51),39,41,43(50),45,47-tetracosaene (CAS 82040-66-2)
- N1-(1-Benzyl-3-hydroxy-5-phenyl-4-{[(1,3-thiazol-5-ylmethoxy)carbonyl]amino}pentyl)-N2-{[[(5-isopropyl-1,3-thiazol-2-yl)methyl](methyl)amino]carbonyl}valinamide (CAS 2096495-89-3)
- O-(2-(1,2-Dihexanoyl-3-(7-oxo-11-((3aS,4S,6aR)-2-oxohexahydro-1H-thieno[3,4-d]imidazol-4-yl)undecanoyl)triazyl)ethyl) methanesulfonothioate (CAS 1322625-00-2)
- N,N'-Bis(9,9-dimethyl-9H-fluoren-2-yl)-N,N'-diphenylbenzidine (CAS 361486-60-4)
- Atogepant Impurity 91 (CAS CATO-C4X-328591)
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- Atrasentan Impurity 206 (CAS 1140617-21-5)
- 2-(Tert-butyl) 4-ethyl 3-oxo-2-azabicyclo[2.2.2]Octane-2,4-dicarboxylate (CAS 2306263-26-1)
- 1-(3-Nitrophenyl)piperazin-2-one (CAS 215649-84-6)
- 6-((2-Ethyl-1H-imidazol-1-yl)methyl)pyridazin-4(1H)-one (CAS 627525-61-5)
- 5-Propyl-2-(4-(trans-4-propylcyclohexyl)phenyl)pyrimidine (CAS 98495-17-1)
- 2-(p-Tolyloxy)acetamide (CAS 35368-57-1)
- Cloniprazepam (CAS 1998158-84-1)
- [Formaldehyde Schiff-base]-Semaglutide Impurity 136 X TFA Salt (CAS CATO-C4X-2226136)
Why CATO?
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