Ethyl 1-(4-methoxyphenyl)-5-methyl-1H-pyrazole-4-carboxylate CAS 187998-66-9
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 187998-66-9 |
| Molecular Formula | C14H16N2O3 |
| Molecular Weight | 260.29 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Ethyl 1-(4-methoxyphenyl)-5-methyl-1H-pyrazole-4-carboxylate (CAS 187998-66-9) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C14H16N2O3. Molecular weight: 260.29 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C14H16N2O3 |
| Molecular Weight | 260.29 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 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2010 |
| Nitrogen Atoms | 2 |
Related Ethyl Standards
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- 2-(1-(3-Methoxyphenyl)-3,5-dimethyl-1H-pyrazol-4-yl)acetic acid (CAS 1267341-67-2)
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Recommended Standards
- propyl 5-hydroxy-3-methyl-1-phenyl-1H-pyrazole-4-carboxylate (CAS 1858241-48-1)
- TERT-BUTYL 3-((HYDROXYIMINO)METHYL)-1H-INDOLE-1-CARBOXYLATE (CAS 188988-43-4)
- 5-Amino-3-(pyrrolo[2,3-c]pyridin-1-yl)isoquinoline (CAS 1841079-88-6)
- 1-Bromotridecane-1,1,2,2-d4 (CAS 284474-45-9)
- 1,1,1-trifluoro-2-methoxyethane 1,1,1-tris(fluoranyl)-2-methoxy-ethane 460-43-5 A826974 (CAS 460-43-5)
- N-Methyl-1-(1,4,5-trimethyl-1H-imidazol-2-yl)-methanamine dihydrochloride (CAS 1332531-08-4)
- 2-(2-Amino-6-methoxypyridin-4-yl)acetic acid (CAS 1393539-94-0)
- 5-Methoxy-1-(pyrimidin-2-yl)-1H-pyrazole-3-carboxylic acid (CAS 1427013-51-1)
- 3-(tert-Butoxycarbonyl)-1-methylcyclobutanecarboxylic acid (CAS 2166745-49-7)
- Allo-D-Ile12-Tirzepatide (CAS CATO-CPTD788963)
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