Celecoxib Impurity 13 CAS 1576-43-8
Purity 97%+In StockPharmacopoeial Impurity Standards
| CAS No. | 1576-43-8 |
| Molecular Formula | C6H7NO3S |
| Molecular Weight | 173.19 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Celecoxib Impurity 13 (CAS 1576-43-8) is a pharmacopoeial impurity standards certified reference material from CATO. Molecular formula: C6H7NO3S. Molecular weight: 173.19 g/mol. ISO 17034 accredited production ensures traceable purity and reliable analytical results.
Physical & Chemical Properties
| Molecular Formula | C6H7NO3S |
| Molecular Weight | 173.19 g/mol |
| Purity | 97%+ |
| 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) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Celecoxib Standards
Recommended Standards
- Vonoprazan Impurity 54 (CAS 1421640-34-7)
- Ceftriaxone Impurity 26 (CAS 77780-49-5)
- Vonoprazan Impurity 189 (CAS CATO-C4X-1020189)
- Metaraminol Impurity 8 (CAS 21480-44-4)
- Ketoprofen EP Impurity A (CAS 66067-44-5)
- (6-tert-Butoxypyridin-2-yl)methanol (CAS 717105-08-3)
- 1-(Difluoromethyl)-3-fluoro-5-(trifluoromethyl)benzene (CAS 1161362-03-3)
- 4-Ethylindoline-2,3-dione (CAS 34934-05-9)
- 3-Isopropyl-4-methyl-1H-indazole (CAS 1415741-72-8)
- Semaglutide Impurity 16 (CAS CATO-C4X-222616)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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