4-({2-[4-(Methoxycarbonyl)-3-phenyl-5-isoxazolyl]vinyl}amino)benzenecarboxylic acid CAS 303995-80-4
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 303995-80-4 |
| Molecular Formula | C20H16N2O5 |
| Molecular Weight | 364.35 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-({2-[4-(Methoxycarbonyl)-3-phenyl-5-isoxazolyl]vinyl}amino)benzenecarboxylic acid (CAS 303995-80-4) is a pharmaceutical standards certified reference material from CATO. Molecular formula: C20H16N2O5. Molecular weight: 364.35 g/mol. ISO 17034 accredited production ensures traceable purity and reliable analytical results.
Physical & Chemical Properties
| Molecular Formula | C20H16N2O5 |
| Molecular Weight | 364.35 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) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 2 |
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Recommended Standards
- 2-Methyl-4-(3-(4-nitrophenyl)acrylamido)benzene-1-sulfonyl fluoride (CAS 21320-85-4)
- 4-Fluoro-N'-(3-(pyridin-3-yl)-4,5-dihydroisoxazole-5-carbonyl)benzenesulfonohydrazide (CAS 478078-50-1)
- 2-[3-(1,3-dioxo-2,3-dihydro-1H-isoindol-2-yl)-2-methoxypropyl]-2,3-dihydro-1H-isoindole-1,3-dione (CAS 856832-79-6)
- 4-Chloro-6-(2-methyl-1H-imidazol-1-yl)pyrimidine (CAS 941294-31-1)
- Benzyl octahydro-1H-pyrrolo[3,2-c]pyridine-1-carboxylate (CAS 1196156-47-4)
- 2-(3-Nitrobenzamido)-2-oxoethyl 1-(3-fluorophenyl)cyclopentane-1-carboxylate (CAS 733000-36-7)
- Rosuvastatin Impurity 252 (CAS 587855-03-6)
- 3-Oxabicyclo[3.1.0]Hexan-6-ol (CAS 2415382-71-5)
- 1-Bromo-2-(difluoromethyl)-4-nitrobenzene (CAS 1261477-23-9)
- Semaglutide (CAS CATO-C4X-2226105)
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