5-Ethoxy-2-(4-nitrophenyl)-2,4-dihydro-3H-pyrazol-3-one CAS 4105-90-2
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 4105-90-2 |
| Molecular Formula | C11H11N3O4 |
| Molecular Weight | 249.22 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
High-purity 5-Ethoxy-2-(4-nitrophenyl)-2,4-dihydro-3H-pyrazol-3-one (CAS 4105-90-2) pharmaceutical standards reference standard. Molecular formula: C11H11N3O4. Molecular weight: 249.22 g/mol. Produced by CATO, one of China's leading reference material manufacturers, with COA documentation and global shipping.
Physical & Chemical Properties
| Molecular Formula | C11H11N3O4 |
| Molecular Weight | 249.22 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Nitrogen Atoms | 3 |
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Recommended Standards
- 5-[(3,5-dimethyl-4-nitro-1h-pyrazol-1-yl)methyl]furan-2-carbaldehyde (CAS 512809-77-7)
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- 5,8-Dimethoxy-4-oxo-1,4-dihydro-quinoline-3-carboxylic acid (CAS 842956-45-0)
- N-(5-Amino-2-fluorophenyl)-4-methylbenzamide (CAS 926264-23-5)
- N-(2-Aminoethyl)-5-(3-fluorophenyl)thiazole-4-carboxamide (CAS 127500-84-9)
- 7-Fluoro-8-hydroxy-2-oxaspiro[3.5]Non-7-en-6-one (CAS 2227205-19-6)
- Ethyl furo[2,3-b]pyridine-2-carboxylate (CAS 34668-25-2)
- 6-Chloro-1-(p-tolylamino)anthracene-9,10-dione (CAS 61100-65-0)
- Betamethasone impurity 99 (CAS CATO-C4X-143799)
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