3-Ethoxy-1-phenyl-1H-pyrazole-4,5-dione CAS 197652-05-4
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 197652-05-4 |
| Molecular Formula | C11H10N2O3 |
| Molecular Weight | 218.21 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3-Ethoxy-1-phenyl-1H-pyrazole-4,5-dione (CAS 197652-05-4) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C11H10N2O3. Molecular weight: 218.21 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C11H10N2O3 |
| Molecular Weight | 218.21 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.) | 2013 |
| Nitrogen Atoms | 2 |
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Recommended Standards
- (2-(Benzo[d][1,3]dioxol-5-yl)oxazol-4-yl)methanamine (CAS 885273-48-3)
- Methyl 4-(5-Methyl-1,2,4-oxadiazol-3-yl)benzoate (CAS 196301-94-7)
- (2-Acetyl-1H-benzimidazol-1-yl)acetic acid (CAS 897773-71-6)
- ((1S)-1-(2-naphthyl)ethyl)methylamine (CAS 885619-30-7)
- 1-(2-Bromoethyl)-4,5-dichloro-1H-imidazole (CAS 1098340-25-0)
- ethyl 6-amino-7-methyl-1,5-naphthyridine-3-carboxylate (CAS 2891456-59-8)
- Tert-butyl (3R,4S)-4-hydroxy-3-(2-methoxy-2-oxoethyl)piperidine-1-carboxylate (CAS 1903429-83-3)
- 1-Cyclopentylpiperidine-3-carboxylic acid (CAS 897094-36-9)
- 4-Mercapto-4-methylpentanoic Acid (CAS 140231-31-8)
- Semaglutide Impurity 7 (CAS CATO-C4X-22267)
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