5-Methylisoxazole-3-carboxylic acid methyl ester
Methyl 5-methylisoxazole-3-carboxylate
CAS: 19788-35-3
Molecular Formula: C6H7NO3
5-Methylisoxazole-3-carboxylic acid methyl ester - Names and Identifiers
5-Methylisoxazole-3-carboxylic acid methyl ester - Physico-chemical Properties
| Molecular Formula | C6H7NO3 |
| Molar Mass | 141.12 |
| Density | 1.179±0.06 g/cm3(Predicted) |
| Melting Point | 90-92 °C |
| Boling Point | 125°C 11mm |
| Flash Point | 125°C/11mm |
| Vapor Presure | 0.064mmHg at 25°C |
| Appearance | White to off-white crystalline powder |
| BRN | 115704 |
| pKa | -5.08±0.50(Predicted) |
| Storage Condition | 2-8°C |
| Refractive Index | 1.468 |
| MDL | MFCD00015895 |
| Physical and Chemical Properties | Crystalline (benzene), melting point 98-99 °c. |
5-Methylisoxazole-3-carboxylic acid methyl ester - Risk and Safety
| Hazard Symbols | Xi - Irritant |
| Risk Codes | 36/37/38 - Irritating to eyes, respiratory system and skin. |
| Safety Description | S24/25 - Avoid contact with skin and eyes. S36 - Wear suitable protective clothing. S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. |
| HS Code | 29349990 |
5-Methylisoxazole-3-carboxylic acid methyl ester - Reference Information
| NIST chemical information | Information provided by: webbook.nist.gov (external link) |
| Use | Intermediate of sulfamethoxazole. |
| Production method | It can be made by cycliphing methyl levulinate and hydroxylamine hydrochloride. |
Last Update：2024-04-09 21:04:16
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View History
5-Methylisoxazole-3-carboxylic acid methyl ester
5-[(4-chlorophenyl)acetyl]-2,8-dimethyl-2,3,4,4a,5,9b-hexahydro-1H-pyrido[4,3-b]indole
5-bromo-3-[2-(4-ethylphenyl)-2-oxoethyl]-3-hydroxy-1-methyl-1,3-dihydro-2H-indol-2-one
5-[(4-chlorophenyl)acetyl]-2,8-dimethyl-2,3,4,4a,5,9b-hexahydro-1H-pyrido[4,3-b]indole
5-bromo-3-[2-(4-ethylphenyl)-2-oxoethyl]-3-hydroxy-1-methyl-1,3-dihydro-2H-indol-2-one