Ethyl 5-hydroxy-3-methyl-1H-pyrazole-4-carboxylate CAS 125732-40-3
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 125732-40-3 |
| Molecular Formula | C7H10N2O3 |
| Molecular Weight | 170.17 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Ethyl 5-hydroxy-3-methyl-1H-pyrazole-4-carboxylate (CAS 125732-40-3) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C7H10N2O3. Molecular weight: 170.17 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C7H10N2O3 |
| Molecular Weight | 170.17 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1992 |
| Nitrogen Atoms | 2 |
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- 2-Hydroxy-3-(1-methyl-1h-imidazol-2-yl)propanoic acid (CAS 1518344-69-8)
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Recommended Standards
- Ethyl (1E)-N-(4-amino-1,2,5-oxadiazol-3-yl)-ethanimidoate (CAS 1256633-10-9)
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- Methyl 3-(5-amino-4H-1,2,4-triazol-3-yl)propanoate (CAS 1259516-86-3)
- 4-(Hydroxymethyl)-1-methylpyridin-1-ium iodide (CAS 6457-57-4)
- 1-(5-Amino-2,3-dihydro-1h-indol-1-yl)-2-methoxyethan-1-one (CAS 1019498-71-5)
- 9-Bromoacridine (CAS 4357-57-7)
- n-Methyl-1-(5-nitrofuran-2-yl)methanamine (CAS 806604-44-4)
- Emtricitabine Isopropyl Carbamate (CAS CATO-C4X-123217)
- N,N-Dimethyl-4-(7-nitro-[1,2,4]triazolo[4,3-a]pyridin-3-yl)aniline (CAS 88974-91-8)
- Semaglutide impurity 48 (CAS CATO-C4X-222648)
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