Arbidol Impurity 35 CAS CATO-C4X-112935
| CAS No. | CATO-C4X-112935 |
| Molecular Formula | C20H21BrN2O3S |
| Molecular Weight | 449.36 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
As a process- or degradation-related impurity, Arbidol Impurity 35 (CAS CATO-C4X-112935, C20H21BrN2O3S) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Based on its molecular formula C20H21BrN2O3S, Arbidol Impurity 35 contains a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, bromine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 449.36 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
CATO manufactures Arbidol Impurity 35 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 | C20H21BrN2O3S |
| Molecular Weight | 449.36 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 | Br-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Arbidol Standards
- Arbidol Impurity 28 (CAS CATO-C4X-112928)
- Arbidol Impurity 31 (CAS CATO-C4X-112931)
- Arbidol Impurity 19 (CAS CATO-C4X-112919)
- Arbidol Impurity 58 (CAS CATO-C4X-112958)
- Arbidol impurity 44 (CAS CATO-C4X-112944)
- Arbidol Impurity 54 (CAS CATO-C4X-112954)
- Arbidol Impurity 37 (CAS CATO-C4X-112937)
- Arbidol Impurity 4 (CAS 1130901-04-0)
Recommended Standards
- 3-(4-(4-Bromophenyl)-5-(cinnamylthio)-4H-1,2,4-triazol-3-yl)pyridine (CAS 477734-67-1)
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- 4'-((3,5-Dicarboxyphenyl)carbamoyl)-[1,1'-biphenyl]-3,5-dicarboxylic acid (CAS 2380036-45-1)
- 2-(4-((4-Bromophenyl)sulfonyl)-1,4-diazepan-1-yl)-4,6-dimethylnicotinonitrile (CAS 478256-86-9)
- Parecoxib Impurity 47 (CAS 181695-84-1)
- Nemonoxacin Impurity 64 (CAS CATO-C4X-312864)
- Fasudil Impurity 10 (CAS 166895-76-7)
- (2-((1,4-Dioxa-8-azaspiro[4.5]Decan-8-yl)methyl)phenyl)(m-tolyl)methanone (CAS 898755-74-3)
- 1-(3-Bromopropyl)-1-methylcyclopropane (CAS 2138236-23-2)
- trans-5-(tert-butoxycarbonylamino)tetrahydropyran-2-carboxylic acid (CAS 2411503-41-6)
- 1-(3-Amino-4-hydroxyphenyl)ethanone hydrochloride (CAS 14347-14-9)
- 2-BRomo-1-fluoro-3-(propan-2-yloxy)benzene (CAS 1369905-78-1)
- 8-Hydroxyisoquinoline-6-carboxylic acid (CAS 1556953-43-5)
- Palmitoyl Hexapeptide-12 (CAS 171263-26-6)
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