Ritonavir Impurity 37 CAS CATO-C4X-175137
| CAS No. | CATO-C4X-175137 |
| Molecular Formula | C23H27N3O3S |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 462.00 g/mol gives Ritonavir Impurity 37 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies Ritonavir Impurity 37 (CAS CATO-C4X-175137), a certified reference material (molecular formula C23H27N3O3SHCl, MW 462.00 g/mol) for analytical method development and quality control.
Structurally, Ritonavir Impurity 37 (C23H27N3O3SHCl) contains a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 11.0, corresponding to approximately 11 ring(s) or double-bond equivalent(s). With a molecular weight of 462.00 g/mol, it falls into the moderately-high-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C23H27N3O3S HCl |
| Molecular Weight | 462.00 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Ritonavir Standards
- Ritonavir EP Impurity C (CAS 1010808-43-1)
- Ritonavir EP Impurity K (CAS 1010809-39-8)
- Ritonavir EP Impurity H (CAS 1010809-43-4)
- Ritonavir Impurity 45 (CAS 1010809-50-3)
- Ritonavir Impurity 46 (CAS 1010809-54-7)
- Ritonavir EP Impurity F (CAS 1010809-61-6)
- Ritonavir Dehydro (CAS 1156504-13-0)
- Ritonavir-13C3 (CAS 1217673-23-8)
Recommended Standards
- 3-(4-Ethoxyphenyl)-3-(1-oxoisoindolin-2-yl)propanoic acid (CAS 478260-16-1)
- 3-(1-Amino-2-(methylsulfonyl)propyl)aniline (CAS 1710853-10-3)
- 1-Methyl-3-(2-methylcyclopropyl)-1h-pyrazol-5-amine (CAS 1152707-68-0)
- 4-[(5-Chloro-3-fluoro-2-pyridyl)oxy]benzonitrile (CAS 1538764-41-8)
- (2-Fluoro-3-iodo-6-methoxyphenyl)(methyl)sulfane (CAS 2635937-43-6)
- (4-Methyl-5-(methylthio)-4H-1,2,4-triazol-3-yl)methanol (CAS 1092279-07-6)
- Methyl 1-Methylpiperidine-3-carboxylate (CAS 1690-72-8)
- 2-Chloro-5-(difluoromethyl)-6-iodo-3-methylpyridine (CAS 1806872-50-3)
- 4-Bromo-2H-pyrazole-3-carboxylic acid (CAS 1092683-57-2)
- Insulin Degludec Impurity 14 (CAS CATO-C4X-215714)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com