Epalrestat Impurity 1 CAS 130786-32-2
| CAS No. | 130786-32-2 |
| Molecular Formula | C8H9NO3S2 |
| Molecular Weight | 231.29 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.
Epalrestat Impurity 1 (CAS 130786-32-2) is a certified pharmaceutical impurity reference standard with the molecular formula C8H9NO3S2 and a molecular weight of 231.29 g/mol.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, Epalrestat Impurity 1 is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 231.29 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
CATO manufactures Epalrestat Impurity 1 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 | C8H9NO3S2 |
| Molecular Weight | 231.29 g/mol |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1994 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 2 |
Related Epalrestat Standards
- Epalrestat Impurity 45 (CAS CATO-C4X-223645)
- Epalrestat Impurity 53 (CAS CATO-C4X-223653)
- Epalrestat Impurity 20 (CAS 23176-01-4)
- Epalrestat Impurity 52 (CAS CATO-C4X-223652)
- Epalrestat Impurity 61 (CAS CATO-C4X-223661)
- Epalrestat Impurity 19 (CAS 149789-77-5)
- Epalrestat impurity 37 (CAS CATO-C4X-223637)
- Epalrestat Impurity 21 (CAS 5718-83-2)
Recommended Standards
- Brivaracetam Impurity 205 (CAS CATO-C4X-2007205)
- Ammoxetine Impurity 25 (CAS CATO-C4X-224425)
- Brivaracetam Impurity 193 (CAS CATO-C4X-2007193)
- 【禁售不询】Metamizole EP Impurity D (CAS 58-15-1)
- Fasudil Impurity 41 (CAS 5769-35-7)
- Idarubicin Impurity 1 (CAS 60660-75-5)
- Celecoxib Impurity 12 (CAS 1061214-09-2)
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- N-(1-(pyridin-4-yl)ethyl)acetamide (CAS 23974-16-5)
- 2-(((4-Methoxy-3-methylpyridin-2-yl)methyl)sulfinyl)-5,5,7,7-tetramethyl-5,7-dihydroindeno[5,6-d]imidazol-6(1H)-one (CAS 101387-98-8)
- 4-Bromo-2-methyl-n-propylbenzamide (CAS 1344291-11-7)
- 6-MEthyl-5,6,7,8-tetrahydropyrido[4,3-d]pyrimidine HCl (CAS 1820619-44-0)
- (5-Amino-6-methoxypyridin-3-yl)methanol (CAS 59237-51-3)
- Eledoisin Related Peptide (CAS 2990-43-4)
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