Arbidol Impurity 37 CAS CATO-C4X-112937
| CAS No. | CATO-C4X-112937 |
| Molecular Formula | C21H23BrN2O3S |
| Molecular Weight | 463.39 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C21H23BrN2O3S, Arbidol Impurity 37 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 463.39 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).
As a process- or degradation-related impurity, Arbidol Impurity 37 (CAS CATO-C4X-112937, C21H23BrN2O3S) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
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 Arbidol Impurity 37 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 | C21H23BrN2O3S |
| Molecular Weight | 463.39 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 4 (CAS 1130901-04-0)
- Arbidol Impurity 54 (CAS CATO-C4X-112954)
- Arbidol Impurity 58 (CAS CATO-C4X-112958)
- Arbidol Impurity 23 (CAS CATO-C4X-112923)
- Arbidol Impurity 11 (CAS 958450-23-2)
- Arbidol Impurity 31 (CAS CATO-C4X-112931)
- Arbidol Impurity 48 (CAS CATO-C4X-112948)
- Arbidol (CAS 131707-25-0)
Recommended Standards
- 4-Nitrophenyl α-D-maltopyranoside (CAS 17400-77-0)
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- Fmoc-2,4-dinitro-DL-phenylglycine (CAS 1219389-84-0)
- 4-Nitrophenyl β-D-maltopyranoside (CAS 56846-39-0)
- Luliconazole impurity 30 (CAS CATO-C4X-285330)
- Hydrocortisone Impurity 69 (CAS 2905373-61-5)
- Procaterol Impurity 6 (CAS CATO-C4X-18106)
- 3-Bromo-7-methyl-1H-indazole (CAS 885519-00-6)
- (S)-N1-((1-Benzylpyrrolidin-2-yl)methyl)-N1-ethylethane-1,2-diamine (CAS 1354018-24-8)
- 2-((2-Chloro-4-fluorobenzyl)oxy)benzaldehyde (CAS 588681-52-1)
- Pimozide Impurity 1 (CAS 16148-06-4)
- 2-(Methacryloyloxy)acetic acid (CAS 6852-90-0)
- 3-Fluoro-4-(2,2,2-trifluoroethoxy)benzaldehyde (CAS 502486-73-9)
- (His32,Leu34)-Neuropeptide Y (32-36) (CAS 168916-68-5)
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