3-(1-ethyl-5-methyl-1H-pyrazol-4-yl)-6-methylisoxazolo[5,4-b]pyridine-4-carboxylic acid CAS 1171943-74-0
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 1171943-74-0 |
| Molecular Formula | C14H14N4O3 |
| Molecular Weight | 286.29 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3-(1-ethyl-5-methyl-1H-pyrazol-4-yl)-6-methylisoxazolo[5,4-b]pyridine-4-carboxylic acid (CAS 1171943-74-0) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C14H14N4O3. Molecular weight: 286.29 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C14H14N4O3 |
| Molecular Weight | 286.29 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1989 |
| Nitrogen Atoms | 4 |
Recommended Standards
- Methyl 6-(1,3-dimethyl-1H-pyrazol-4-yl)-3-methylisoxazolo[5,4-b]pyridine-4-carboxylate (CAS 1171594-07-2)
- Methyl 6-(1-ethyl-1h-pyrazol-3-yl)-3-methylisoxazolo[5,4-b]pyridine-4-carboxylate (CAS 1172804-59-9)
- Ethyl 5-amino-4-cyano-1-(3-methoxyphenyl)pyrazole-3-carboxylate (CAS 1150164-14-9)
- Tert-butyl (S)-4-isopropyl-2,5-dioxooxazolidine-3-carboxylate (CAS 141468-55-5)
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