Nimesulide EP Impurity A CAS 51765-56-1
Purity >95%In StockPharmacopoeial Impurity Standards
| CAS No. | 51765-56-1 |
| Molecular Formula | C13H11N3O7S |
| Molecular Weight | 353.31 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Nimesulide EP Impurity A (CAS 51765-56-1) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C13H11N3O7S. Molecular weight: 353.31 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C13H11N3O7S |
| Molecular Weight | 353.31 g/mol |
| Purity | >95% |
| 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1971 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Nimesulide Standards
- Nimesulide EP Impurity E (CAS 905858-63-1)
- Nimesulide EP Impurity F (CAS 51765-72-1)
- Nimesulide (CAS 51803-78-2)
- Nimesulide Impurity N1 (CAS 19881-18-6)
- Nimesulide EP Impurity B (CAS 51765-51-6)
- Nimesulide Impurity 2 (CAS 38880-53-4)
- Nimesulide EP Impurity G (CAS 70995-08-3)
- Nimesulide EP Impurity D (CAS 5422-92-4)
Recommended Standards
- N-[9-[(2R,4R,5R)-4-fluoro-5-(hydroxymethyl)-3-oxo-tetrahydrofuran-2-yl]-6-oxo-3H-purin-2-yl]-2-methyl-propanamide (CAS 2740545-09-7)
- (2E)-2-(Benzenesulfonyl)-3-[3-(trifluoromethoxy)phenyl]prop-2-enenitrile (CAS 1025264-69-0)
- 4-[(E)-2-(2,4-Dichlorophenyl)ethenyl]-6,6-dimethyl-2-(prop-2-en-1-ylsulfanyl)-1,6-dihydropyrimidine (CAS 303149-41-9)
- Desonide Impurity 17 (CAS CATO-C4X-130117)
- Orbifloxacin impurity 14 (CAS CATO-C4X-256714)
- (S)-3,3,3-Trifluoro-1-(4-chlorophenyl)-2-propylamine (CAS 1365929-24-3)
- 1-Benzyl-2-(methylthio)-1H-imidazole-5-carbaldehyde (CAS 479400-30-1)
- Ethyl 3-iodo-4-isopropylbenzoate (CAS 1131588-19-6)
- (R)-2-((tert-Butoxycarbonyl)amino)-2-(4-ethylphenyl)acetic acid (CAS 1228547-75-8)
- Palmitoyl Tripeptide-8 TFA salt (CAS 936544-53-5)
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