Parecoxib Impurity 67 CAS 198471-83-9
Purity 97%+In StockPharmacopoeial Impurity Standards
| CAS No. | 198471-83-9 |
| Molecular Formula | C19H18N2O5S |
| Molecular Weight | 386.42 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Parecoxib Impurity 67 (CAS 198471-83-9) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C19H18N2O5S. Molecular weight: 386.42 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C19H18N2O5S |
| Molecular Weight | 386.42 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2013 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Parecoxib Standards
- Parecoxib Impurity 39 (CAS CATO-C4X-159139)
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- Parecoxib Impurity 53 (CAS CATO-C4X-159153)
- Parecoxib Impurity 54 (CAS CATO-C4X-159154)
- Parecoxib Impurity 55 (CAS CATO-C4X-159155)
- Parecoxib Impurity 56 (CAS CATO-C4X-159156)
Recommended Standards
- Pioglitazone impurity 47 (CAS 146062-48-8)
- Eldecalcitol Impurity 62 (CAS CATO-C4X-214062)
- N-(3-(N-(Furan-2-ylmethyl)sulfamoyl)phenyl)-4-methoxybenzamide (CAS 522625-85-0)
- Empagliflozin Impurity 67 (CAS CATO-C4X-106567)
- Perospirone impurity 48 (CAS CATO-C4X-245848)
- 7-Bromo-2,3-dimethylimidazo[1,2-a]pyridine (CAS 1173656-67-1)
- 1-Bromo-4-chloro-2-methyl-5-nitrobenzene (CAS 10289-13-1)
- methyl 4-bromo-3-methylthieno[2,3-c]pyridine-2-carboxylate (CAS 870244-28-3)
- Methyl Indole-4-carboxylate (CAS 39830-66-5)
- D-[γ-Glu](Side Chain)-Semaglutide (CAS CATO-C4X-2226254)
Why CATO?
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