Arbidol Impurity 56 CAS CATO-C4X-112956
| CAS No. | CATO-C4X-112956 |
| Molecular Formula | C18H16BrNO3S |
| Molecular Weight | 406.29 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.
As a process- or degradation-related impurity, Arbidol Impurity 56 (CAS CATO-C4X-112956, C18H16BrNO3S) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Owing to a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, bromine substitution, Arbidol Impurity 56 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 406.29 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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 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 | C18H16BrNO3S |
| Molecular Weight | 406.29 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; 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 | 1 |
| Sulfur Atoms | 1 |
Related Arbidol Standards
- Arbidol Impurity 21 (CAS 25900-97-4)
- Arbidol Impurity 57 (CAS CATO-C4X-112957)
- Arbidol Impurity 2 (CAS 131707-24-9)
- Arbidol Impurity 26 (CAS CATO-C4X-112926)
- Arbidol Impurity 46 (CAS 149246-36-6)
- Arbidol Impurity 15 (CAS CATO-C4X-112915)
- Arbidol Impurity 51 (CAS 2062260-55-1)
- Arbidol Impurity 25 (CAS 110543-98-1)
Recommended Standards
- N-(4-bromo-3-methylphenyl)-2-(4-(4-fluorophenyl)piperazin-1-yl)acetamide (CAS 329079-96-1)
- tert-Butyl 4-(3-fluoro-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)piperazine-1-carboxylate (CAS 1129541-83-8)
- N-(2-bromo-4-methylphenyl)-2-(4-(4-fluorophenyl)piperazin-1-yl)acetamide (CAS 775317-02-7)
- Lesinurad Impurity 3 (CAS 1533519-96-8)
- Mometasone Furoate EP Impurity O (CAS 24916-91-4)
- Dabigatran Impurity 75 (CAS 355809-32-4)
- Galantamine EP Impurity F (ent-Galantamine) (CAS 60384-53-4)
- 1-(2,3-Dimethoxyphenyl)-3-(thiophen-3-ylmethyl)urea (CAS 1210704-67-8)
- 6-Bromo-9-methyl-1,4-dioxaspiro[4.4]non-6-ene (CAS 208450-52-6)
- (2R,6R)-2,6-Dimethylpiperidine (CAS 14231-78-8)
- Gallic Acid Impurity 1 (CAS 1782069-25-3)
- 2-(3-Bromo-4-fluorophenyl)-2,2-difluoroacetic acid (CAS 1785259-60-0)
- 2-Bromo-4-chloro-6-nitroanisole (CAS 569688-62-6)
- Semaglutide impurity 40 (CAS CATO-C4X-222640)
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