Ritonavir Impurity 54 CAS CATO-C4X-175154
| CAS No. | CATO-C4X-175154 |
| Molecular Formula | C13H21N3O3S |
| Molecular Weight | 299.39 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Structurally, Ritonavir Impurity 54 (C13H21N3O3S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 299.39 g/mol, it falls into the medium-molecular-weight range. 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 Impurity 54 (CAS CATO-C4X-175154, C13H21N3O3S) 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.
As a certified reference material (CRM), Ritonavir Impurity 54 meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C13H21N3O3S |
| Molecular Weight | 299.39 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°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) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Ritonavir Standards
- Ritonavir Impurity 59 (CAS CATO-C4X-175159)
- Ritonavir EP Impurity A (CAS 154212-61-0)
- Ritonavir Impurity N16 (CAS 183246-46-0)
- Ritonavir Diamino Alcohol Impurity (CAS 144163-44-0)
- Ritonavir Impurity 58 (CAS 172720-22-8)
- Ritonavir Impurity 52 (CAS CATO-C4X-175152)
- Ritonavir Impurity 53 (CAS CATO-C4X-175153)
- Ritonavir Impurity N11 (CAS 2519851-81-9)
Recommended Standards
- Promethazine impurity 55 (CAS CATO-C4X-141855)
- Arotinolol Impurity 54 (CAS CATO-C4X-185454)
- N-Nitroso Promethazine EP Impurity C (CAS 94511-44-1)
- Methylene blue /Methylthioninium Chloride Impurity 36 (CAS CATO-C4X-189636)
- Semaglutide impurity 233 (CAS CATO-C4X-2226233)
- Aztreonam Impurity 4 (CAS 102507-85-7)
- Halcinonide Impurity 9 (CAS CATO-C4X-27959)
- tert-Butyl 4-(2-fluoro-6-(trifluoromethyl)-phenyl)piperazine-1-carboxylate (CAS 1774897-45-8)
- tert-Butyl 2-(furan-2-yl)piperidine-1-carboxylate (CAS 1355219-12-3)
- (3R,6R)-3-Benzyl-6-(hydroxymethyl)-1,4-dimethyl-3,6-bis(methylthio)piperazine-2,5-dione (CAS 52080-06-5)
- 3-(2-Methoxy-4-nitrophenoxy)propan-1-amine (CAS 1249559-13-4)
- 2-[Benzyl(ethyl)amino]-N-hydroxybenzenecarboximidamide (CAS 1087792-97-9)
- 3,5-Dichloro-4-methoxybenzamide (CAS 4073-41-0)
- Semaglutide impurity 244(Fmoc-His(Fmoc)-Aib-OH) (CAS CATO-C4X-2226244)
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