Rupatadine Impurity 38 CAS CATO-C4X-102738
| CAS No. | CATO-C4X-102738 |
| Molecular Formula | C26H24ClN3O |
| Molecular Weight | 429.94 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Structurally, Rupatadine Impurity 38 (C26H24ClN3O) contains a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 16.0, corresponding to approximately 16 ring(s) or double-bond equivalent(s). With a molecular weight of 429.94 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.
CATO supplies Rupatadine Impurity 38 (CAS CATO-C4X-102738), a pharmacopoeial impurity reference standard (molecular formula C26H24ClN3O, MW 429.94 g/mol) used for the identification and quantification of trace impurities in APIs.
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.
CATO manufactures Rupatadine 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 | C26H24ClN3O |
| Molecular Weight | 429.94 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 16.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
Related Rupatadine Standards
- Rupatadine impurity 6 (CAS 156523-04-5)
- Rupatadine Impurity 42 (CAS CATO-C4X-102742)
- Rupatadine Impurity 16 (CAS CATO-C4X-102716)
- Rupatadine impurity 17 (CAS CATO-C4X-102717)
- Rupatadine impurity 7 (CAS 1704730-21-1)
- Rupatadine impurity 8 (CAS CATO-C4X-10278)
- Rupatadine impurity 12 (CAS CATO-C4X-102712)
- Rupatadine Impurity 26 (CAS CATO-C4X-102726)
Recommended Standards
- 4-chlorophenyl 2-(3,5-dimethyl-1H-pyrazol-1-yl)-4-phenyl-1,3-thiazol-5-yl sulfone 955976-35-9 KS-000038GL (CAS 955976-35-9)
- Tert-butyl 4-(4-((4-chlorobenzamido)methyl)phenyl)piperazine-1-carboxylate (CAS 866018-62-4)
- (1S,3R)-3-acetamido-N-[5-chloro-4-(5,5-dimethyl-4,6-dihydropyrrolo[1,2-b]pyrazol-3-yl)pyridin-2-yl]cyclohexane-1-carboxamide (CAS 2057509-72-3)
- N-(2-((4-chlorophenyl)sulfonyl)ethyl)-3-tosylpropanamide (CAS 337923-27-0)
- Upadacitinib Impurity 131 (CAS CATO-C4X-2405131)
- Pemafibrate Impurity 60 (CAS CATO-C4X-290360)
- Lenvatinib Impurity 107 (CAS CATO-C4X-1140107)
- (E)-5-(dimethylamino)-1-phenyl-pent-1-en-3-one 5-(Dimethylamino)-1-phenyl-1-penten-3-one 59512-49-1 NSC178847 (CAS 59512-49-1)
- tert-Butyl 3-oxohexahydrocyclopenta[b]pyrrole-1(2h)-carboxylate (CAS 2243507-85-7)
- Proxyphylline impurity 10 (CAS CATO-C4X-244010)
- N-[2-(4-Amino-2-methylphenoxy)ethyl]-N,N-diethylamine (CAS 251372-18-6)
- 2-((Tert-butoxycarbonyl)amino)tetradecanoic acid (CAS 129850-62-0)
- 7-Bromo-4-chloro-2-(methylthio)pyrrolo[2,1-f][1,2,4]triazine (CAS 1232815-51-8)
- Semaglutide Impurity 147 (CAS CATO-C4X-2226147)
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