Epalrestat Impurity 61 CAS CATO-C4X-223661
| CAS No. | CATO-C4X-223661 |
| Molecular Formula | C5H7NO4S2 |
| Molecular Weight | 209.24 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Epalrestat Impurity 61 is closely related to a carbohydrate-derived structure, an amide group, a sulfone group in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
Epalrestat Impurity 61 (CAS CATO-C4X-223661) is a high-purity analytical reference standard with the molecular formula C5H7NO4S2 and a molecular weight of 209.24 g/mol.
Based on its molecular formula C5H7NO4S2, Epalrestat Impurity 61 contains a carbohydrate-derived structure, an amide group, a sulfone group; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 209.24 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).
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
CATO manufactures Epalrestat Impurity 61 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 | C5H7NO4S2 |
| Molecular Weight | 209.24 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) | 3.0 |
| UV Absorption | UV-absorbing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 2 |
Related Epalrestat Standards
- Epalrestat Impurity 19 (CAS 149789-77-5)
- Epalrestat Impurity 20 (CAS 23176-01-4)
- Epalrestat Impurity 45 (CAS CATO-C4X-223645)
- Epalrestat Impurity 53 (CAS CATO-C4X-223653)
- Epalrestat Impurity 21 (CAS 5718-83-2)
- Epalrestat impurity 28 (CAS 179027-75-9)
- Epalrestat Impurity 12 (CAS 109801-00-5)
- Epalrestat impurity 33 (CAS 39486-57-2)
Recommended Standards
- Revefenacin impurity 92 (CAS CATO-C4X-203192)
- Solriamfetol Impurity 28 (CAS CATO-C4X-256328)
- Revefenacin impurity 90 (CAS CATO-C4X-203190)
- Orciprenaline EP Impurity B (CAS 94200-14-3)
- Talnetant (CAS 174636-32-9)
- 5-(3,4-dichlorophenyl)thiophene-2-carbaldehyde (CAS 926204-64-0)
- 4-Amino-5-aminomethyl-2-methylpyrimidine dihydrochloride (CAS 874-43-1)
- 3-Bromo-5-(3,5-dimethyl-1H-pyrazol-1-yl)-1-methyl-1H-1,2,4-triazole (CAS 1351393-85-5)
- 3,4-Dichloro-6-methyl-1H-pyrazolo[3,4-d]pyrimidine (CAS 1936199-22-2)
- 4-(Ethylamino)-1-methylpiperidine (CAS 876717-32-7)
- 1,1-dimethyl-1,2,3,4-tetrahydroisoquinoline hydrochloride (CAS 174784-36-2)
- N-(2-Methylphenyl)-2-pyrrolidinecarboxamidehydrochloride (CAS 1219100-62-5)
- 2-(5-Cyclopropylpyridin-2-yl)acetic acid (CAS 1211531-75-7)
- Tirzepatide Impurity 59 (CAS CATO-C4X-324059)
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