Piroxicam EP Impurity I CAS 76508-35-5
Purity 97%+In StockPharmacopoeial Impurity Standards
| CAS No. | 76508-35-5 |
| Molecular Formula | C12H13NO5S |
| Molecular Weight | 283.30 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Piroxicam EP Impurity I (CAS 76508-35-5) is a high-purity pharmacopoeial impurity standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C12H13NO5S. Molecular weight: 283.30 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C12H13NO5S |
| Molecular Weight | 283.30 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1978 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Piroxicam Standards
- Piroxicam EP Impurity K(Meloxicam EP Impurity A) (CAS 24683-26-9)
- Piroxicam Impurity 15 (CAS 208051-67-6)
- Piroxicam EP Impurity F (CAS 76508-37-7)
- Piroxicam Impurity 14 (CAS CATO-C4X-173314)
- Piroxicam EP Impurity L(Meloxicam EP Impurity F) (CAS 118854-48-1)
- Piroxicam Impurity 20 (CAS CATO-C4X-173320)
- Piroxicam EP Impurity J (CAS 35511-15-0)
- Piroxicam EP Impurity E (CAS 24683-20-3)
Recommended Standards
- 3-(((3,5-Dimethyl-4-nitro-1h-pyrazol-1-yl)methyl)thio)-5-methyl-4h-1,2,4-triazol-4-amine (CAS 1001519-09-0)
- Tert-butyl (R)-2-(2,5-difluorophenyl)pyrrolidine-1-carboxylate (CAS 1218935-58-0)
- 1-(Phenylsulfonyl)-1H-pyrrolo[2,3-b]pyridine-4-carbonitrile (CAS 1227269-45-5)
- Gadoxetate Trisodium impurity 28 (CAS CATO-C4X-261828)
- Levofloxacin Impurity 22 (CAS 82419-46-3)
- 4-hydroxy-6-methyl-2-oxo-1,2-dihydropyridine-3-carboxamide (CAS 68373-65-9)
- PFTU (CAS 206190-14-9)
- (2,6-Dichloropyridin-4-yl)(morpholino)methanone (CAS 57803-44-8)
- N-Cbz-1-phenylcyclopropanamine (CAS 1324000-40-9)
- Semaglutide impurity 32 (CAS CATO-C4X-222632)
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 13829788188 / jacky.chen@cato-chem.com