Ritonavir Impurity 38 CAS CATO-C4X-175138
| CAS No. | CATO-C4X-175138 |
| Molecular Formula | C23H27N3O3S |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Ritonavir Impurity 38.
As a process- or degradation-related impurity, Ritonavir Impurity 38 (CAS CATO-C4X-175138, C23H27N3O3SHCl) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
The molecular framework of Ritonavir Impurity 38 (C23H27N3O3SHCl) is characterized by a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution. 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).
Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
CATO manufactures Ritonavir Impurity 38 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 | 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
- Omadacycline Impurity 34 (CAS CATO-C4X-285734)
- Ursodeoxycholic Acid Impurity 65 (CAS CATO-C4X-142265)
- Prucalopride Impurity 29 (CAS 24190-77-0)
- 2-chloro-5-(3,5-dioxo-4,5-dihydro-1,2,4-triazin-2(3H)-yl)benzoic acid (CAS 524712-41-2)
- 3-Bromo-5-methoxypicolinonitrile (CAS 717843-46-4)
- 2-Fluoro-4-(2-oxopyrrolidin-1-yl)benzaldehyde (CAS 1024204-73-6)
- Mhy553 (CAS 6265-56-1)
- Cyclopentyl (R)-2-amino-2-phenylacetate hydrochloride (CAS 914605-66-6)
- N,N-Bis(2-chloroethyl)-4-methylaniline (CAS 1204-68-8)
- Tau Peptide (244-274) (Repeat 1 Domain) trifluoroacetate salt (CAS 330456-24-1)
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