Ritonavir Impurity 55 CAS CATO-C4X-175155
| CAS No. | CATO-C4X-175155 |
| Molecular Formula | C23H27N3O3S |
| Molecular Weight | 425.54 g/mol |
| 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 55.
CATO supplies Ritonavir Impurity 55 (CAS CATO-C4X-175155), a pharmacopoeial impurity reference standard (molecular formula C23H27N3O3S, MW 425.54 g/mol) used for the identification and quantification of trace impurities in APIs.
Structurally, Ritonavir Impurity 55 (C23H27N3O3S) contains a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 12.0, corresponding to approximately 12 ring(s) or double-bond equivalent(s). With a molecular weight of 425.54 g/mol, it falls into the moderately-high-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).
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 55 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 |
| Molecular Weight | 425.54 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Ritonavir Standards
- Ritonavir Impurity 30 (CAS 144164-11-4)
- Ritonavir Impurity 62 (CAS CATO-C4X-175162)
- Ritonavir Impurity 60 (CAS 2454100-44-6)
- Ritonavir Impurity 32 (CAS CATO-C4X-175132)
- Ritonavir Impurity 34 (CAS CATO-C4X-175134)
- Ritonavir Impurity 35 (CAS 144163-85-9)
- Ritonavir EP Impurity C (CAS 1010808-43-1)
- Ritonavir EP Impurity M (CAS CATO-C4X-175114)
Recommended Standards
- Quetiapine EP Impurity A (CAS 844639-07-2)
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- Indocyanine Green Impurity 52 (CAS CATO-C4X-250352)
- Terbutaline Impurity 14 (CAS 30923-82-1)
- Methyldopa Impurity 14 (CAS CATO-C4X-169314)
- Adenosine Cyclophosphate Impurity 3 (CAS 63963-62-2)
- Bicalutamide Impurity 25 (CAS 1217546-57-0)
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- 4-Bromo-2-fluoro-1-(methoxymethyl)benzene (CAS 95068-02-3)
- 3-{[(2,6-dichlorophenyl)methyl]sulfanyl}thiophene-2-carboxylic acid (CAS 250714-86-4)
- 4-((3,5-Diamino-1H-pyrazol-4-yl)diazenyl)phenol (CAS 140651-18-9)
- IMMH-010 Impurity 4 (CAS CATO-C4X-28824)
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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