5-Methyl-3-phenylisoxazole-4-carboxamide CAS 4340-44-7
| CAS No. | 4340-44-7 |
| Molecular Formula | C11H10N2O2 |
| Molecular Weight | 202.21 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 5-Methyl-3-phenylisoxazole-4-carboxamide (CAS 4340-44-7), a certified reference material (molecular formula C11H10N2O2, MW 202.21 g/mol) for analytical method development and quality control.
Based on its molecular formula C11H10N2O2, 5-Methyl-3-phenylisoxazole-4-carboxamide contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 202.21 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 5-Methyl-3-phenylisoxazole-4-carboxamide under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C11H10N2O2 |
| Molecular Weight | 202.21 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.) | 1958 |
| Nitrogen Atoms | 2 |
Related Methyl Standards
- Methyl 3-phenylisoxazole-5-carboxylate (CAS 1081-30-7)
- Methyl 4-phenylisoxazole-3-carboxylate (CAS 1250444-29-1)
- 3-Methyl-5-phenylisoxazole-4-carboxylic acid (CAS 17153-21-8)
- 4-Methyl-5-phenylisoxazole-3-carboxylic acid (CAS 668971-10-6)
- Methyl 3-phenylisoxazole-4-carboxylate (CAS 50899-16-6)
- Methyl 5-Phenylisoxazole-3-carboxylate (CAS 51677-09-9)
- 3-Phenylisoxazole-5-carbonyl chloride (CAS 124953-60-2)
- 5-Phenylisoxazole-4-carbonyl chloride (CAS 136995-29-4)
Recommended Standards
- 5-Methyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazole-4-carbaldehyde (CAS 20719-13-5)
- 5-Methyl-4-phenyl-1H-pyrazole-3-carboxylic acid (CAS 94933-89-8)
- 5-Methyl-2-phenylfuran-3-carboxylic acid (CAS 64354-50-3)
- 5-Methyl-4-phenylfuran-2-carboxylic acid (CAS 626202-65-1)
- N-(2-Formyl-6-methoxypyridin-4-yl)acetamide (CAS 1393575-51-3)
- 5-(((2,4-Dimethylphenyl)amino)methyl)-1,3,4-oxadiazole-2-thiol (CAS 917750-29-9)
- 5-(Bromomethyl)-3-fluoro-2-methylpyridine (CAS 1379358-46-9)
- Gonadorelin Acetate (CAS 78308-49-3)
- tert-Butyl 5-bromo-3,4-dihydroquinoline-1(2H)-carboxylate (CAS 1706449-47-9)
- 6-(Hydroxymethyl)pyridin-3-ol (CAS 40222-77-3)
- 1-Cyclopropyl-3-(3-fluorophenyl)piperazine (CAS 1248907-98-3)
- 2-Methyl-1,7-phenanthroline (CAS 61351-90-4)
- 3-(4-Methylthiophenyl)-5-trifluoromethylbenzoic acid (CAS 1261975-51-2)
- (Tyr?)-C-Type Natriuretic Peptide (32-53) (human, porcine, rat) (CAS 142878-79-3)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com