Ethyl 4-(3-(4-chlorophenyl)benzo[c]isoxazole-5-carbonyl)isoxazole-3-carboxylate CAS 337920-31-7
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 337920-31-7 |
| Molecular Formula | C20H13ClN2O5 |
| Molecular Weight | 396.78 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Ethyl 4-(3-(4-chlorophenyl)benzo[c]isoxazole-5-carbonyl)isoxazole-3-carboxylate (CAS 337920-31-7), a pharmaceutical standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C20H13ClN2O5. Molecular weight: 396.78 g/mol. Batch-specific COA and technical support are available on request.
Physical & Chemical Properties
| Molecular Formula | C20H13ClN2O5 |
| Molecular Weight | 396.78 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
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Recommended Standards
- 2'-Chloro-[1,1':3',1''-terphenyl]-4,4'',5'-tricarboxylic acid (CAS 2305899-76-5)
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- N-{[2-chloro-6-(1H-pyrrol-1-yl)phenyl]methyl}-3-fluoro-4-(trifluoromethyl)benzamide (CAS 866043-39-2)
- N-(2-Amino-2-oxoethyl)-2-(thiophene-2-carboxamido)oxazole-4-carboxamide (CAS 1286717-03-0)
- Methyl 4-bromo-2-(cyanomethyl)benzoate (CAS 1083181-36-5)
- (1r,4r)-Ethyl 4-((tert-butoxycarbonyl)amino)cyclohexanecarboxylate (CAS 169044-84-2)
- 3-Chloro-5-(trifluoromethyl)-2-[3-(trifluoromethyl)phenoxy]pyridine (CAS 1795483-74-7)
- Methyl 3-(6-chloropyridin-3-yl)acrylate (CAS 188524-63-2)
- (2R,3R,4S,5R,6S)-2-(acetoxymethyl)-6-(isopropylthio)tetrahydro-2H-pyran-3,4,5-triyl triacetate (CAS 55692-84-7)
- (His32,Leu34)-Neuropeptide Y (32-36) (CAS 168916-68-5)
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