NSC 81238
3-(2-Chlorophenyl)-5-Methylisoxazole-4-Carboxylic Acid
CAS: 23598-72-3
Molecular Formula: C11H8ClNO3
NSC 81238 - Names and Identifiers
NSC 81238 - Physico-chemical Properties
| Molecular Formula | C11H8ClNO3 |
| Molar Mass | 237.64 |
| Density | 1.385±0.06 g/cm3(Predicted) |
| Melting Point | 186 °C |
| Boling Point | 374.5±37.0 °C(Predicted) |
| Flash Point | 180.3°C |
| Solubility | DMSO (Slightly), Ethyl Acetate (Slightly) |
| Vapor Presure | 2.83E-06mmHg at 25°C |
| Appearance | Solid |
| Color | White to Pale Brown |
| BRN | 791928 |
| pKa | 2.07±0.25(Predicted) |
| Storage Condition | Sealed in dry,Room Temperature |
| Refractive Index | 1.59 |
NSC 81238 - Risk and Safety
| Risk Codes | R36/37/38 - Irritating to eyes, respiratory system and skin. R22 - Harmful if swallowed R37/38 - Irritating to respiratory system and skin. R36 - Irritating to the eyes |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36 - Wear suitable protective clothing. S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. S22 - Do not breathe dust. |
| TSCA | Yes |
| HS Code | 2934990002 |
| Hazard Class | IRRITANT |
NSC 81238 - Reference Information
| use | intermediate of chlorobenzazole penicillin sodium. |
| Production method | Oxidizing with o-chlorobenzaldehyde and hydroxylamine hydrochloride under alkaline conditions to generate o-chlorobenzoxime, and then chlorinated with chlorine to obtain o-chlorobenzoxime chloride, and cycled with ethyl acetoacetate under the action of alkali to obtain ethyl 3-o-chlorophenyl-5-methyl-4-isoxazole carboxylate, finally, the product is prepared by hydrolysis and acidification of lye. |
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
Last Update：2024-04-09 02:00:02
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Product Name: 5-Methyl-3-(2'-chlorophenyl)-4-isoxazolecarboxylic acid Request for quotationCAS: 23598-72-3
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Tel: 609-228-6898
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tech@medchemexpress.com
Mobile: 609-228-6898
Spot supply
Product Name: 3-(2-Chlorophenyl)-5-methylisoxazole-4-carboxylic Acid Visit Supplier Webpage Request for quotationCAS: 23598-72-3
Tel: 18301782025
Email: 3008007409@qq.com
Mobile: 18021002903
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