Febuxostat Impurity 3 CAS 161797-99-5
Purity 97%+In StockPharmacopoeial Impurity Standards
| CAS No. | 161797-99-5 |
| Molecular Formula | C13H13NO3S |
| Molecular Weight | 263.31 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Febuxostat Impurity 3 (CAS 161797-99-5) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C13H13NO3S. Molecular weight: 263.31 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C13H13NO3S |
| Molecular Weight | 263.31 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, 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; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2003 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
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