Ritonavir Impurity 56 CAS CATO-C4X-175156
| CAS No. | CATO-C4X-175156 |
| Molecular Formula | C37H48N6O5S2 |
| Molecular Weight | 720.94 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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 supplies Ritonavir Impurity 56 (CAS CATO-C4X-175156), a pharmacopoeial impurity reference standard (molecular formula C37H48N6O5S2, MW 720.94 g/mol) used for the identification and quantification of trace impurities in APIs.
Based on its molecular formula C37H48N6O5S2, Ritonavir Impurity 56 contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 720.94 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).
CATO manufactures Ritonavir Impurity 56 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 | 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) | 17.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| 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 Q (CAS 1414933-82-6)
- Ritonavir EP Impurity R (CAS 1414933-80-4)
- Ritonavir impurity 48 (CAS CATO-C4X-175148)
- 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)
- 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)
- 799812-76-3 (2R)-2,3-Bis(hexadecanoyloxy)propyl 3,4,5-trihydroxybenzoate DTXSID70677182 (CAS 799812-76-3)
- 9,9'-(9,9-Dioctyl-9H-fluorene-2,7-diyl)bis(9H-carbazole) (CAS 848900-30-1)
- Benzocaine Impurity 31 (CAS 71134-95-7)
- Cholic Acid Impurity 30 (CAS 1093397-66-0)
- Gefitinib Impurity 34 (CAS 194423-17-1)
- 2H,3H,4H,5H-pyrido[4,3-f][1,4]oxazepine dihydrochloride (CAS 1443979-87-0)
- 2-(Bicyclo[2.2.1]heptan-2-yl)ethanethioamide (CAS 1559001-42-1)
- 3-Amino-N-(3-chloro-2-methylphenyl)-4-(2-chlorophenyl)-6-(p-tolyl)thieno[2,3-b]pyridine-2-carboxamide (CAS 444156-88-1)
- tert-Butyl 3-benzyloxy-4-bromobenzoate (CAS 247186-50-1)
- 3'-Fluoro-4'-methoxy-[1,1'-biphenyl]-4-amine (CAS 1048915-78-1)
- 1-Allyl-5-oxopyrrolidine-3-carboxylic acid (CAS 16199-99-8)
- Semaglutide Impurity 4 (CAS CATO-C4X-22264)
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