Nimesulide CAS 51803-78-2
| CAS No. | 51803-78-2 |
| Molecular Formula | C13H12N2O5S |
| Molecular Weight | 308.31 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Nimesulide is closely related to a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
Nimesulide (CAS 51803-78-2), molecular formula C13H12N2O5S and molecular weight 308.31 g/mol, is a CATO reference standard with documented purity and traceability.
Nimesulide (C13H12N2O5S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures Nimesulide under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C13H12N2O5S |
| Molecular Weight | 308.31 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1971 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Nimesulide Standards
- Nimesulide EP Impurity E (CAS 905858-63-1)
- Nimesulide Impurity N1 (CAS 19881-18-6)
- Nimesulide EP Impurity A (CAS 51765-56-1)
- 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 F (CAS 51765-72-1)
- Nimesulide EP Impurity D (CAS 5422-92-4)
Recommended Standards
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Why CATO?
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