Epalrestat Impurity 55 2Ammonium Salt CAS CATO-C4X-223655
| CAS No. | CATO-C4X-223655 |
| Molecular Formula | C7H9N3O4S2 |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Epalrestat Impurity 55 2Ammonium Salt is closely related to an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
As a process- or degradation-related impurity, Epalrestat Impurity 55 2Ammonium Salt (CAS CATO-C4X-223655, C7H9N3O4S2H4N) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Epalrestat Impurity 55 2Ammonium Salt (C7H9N3O4S2H4N) contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).
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 Epalrestat Impurity 55 2Ammonium Salt 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 | C7H9N3O4S2 2*H4N |
| Molecular Weight | 281.32 g/mol |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 3.5 |
| UV Absorption | UV-absorbing |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 2 |
Related Epalrestat Standards
- Epalrestat Impurity 12 (CAS 109801-00-5)
- Epalrestat Impurity 4 (CAS 1151944-57-8)
- Epalrestat impurity 40 Ammonium Salt (CAS 116636-84-1(Free acid）)
- Epalrestat Impurity 6 (CAS 124782-63-4)
- Epalrestat (E,Z)-Isomer (CAS 124782-64-5)
- Epalrestat Impurity 1 (CAS 130786-32-2)
- Epalrestat Impurity 54 (CAS 1408072-62-7)
- Epalrestat Impurity 21 (CAS 1431637-29-4)
Recommended Standards
- Sodium carbosulfonate impurity 33 (CAS 70063-06-8)
- Oseltamivir Impurity 95 (CAS CATO-C4X-172095)
- Polydatin Impurity 1 (CAS 3009113-18-9)
- 2-Methoxy-N-(4H-1,2,4-triazol-4-yl)acetimidamide (CAS 23195-55-3)
- 2-((P-tolylthio)methyl)-1H-benzo[d]imidazole (CAS 324774-00-7)
- 3-[(2,2,2-trifluoroethoxy)methyl]aniline (CAS 117401-68-0)
- 4-Methyl-5-(1-methylpiperidin-2-yl)pyridine-2(1H)-thione (CAS 1352489-22-5)
- Ethyl 2-(3-hydroxyoxetan-3-yl)acetate (CAS 1638771-95-5)
- 2-(tert-Butoxy)butane (CAS 32970-45-9)
- Semaglutide impurity 93 (CAS CATO-C4X-222693)
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