21169-71-1
Isoxazole-5-carboxylic acid
CAS: 21169-71-1
Molecular Formula: C4H3NO3
21169-71-1 - Names and Identifiers
| Name | Isoxazole-5-carboxylic acid |
| Synonyms | AKOS PAO-1371 TIMTEC-BB SBB004319 1,2-oxazole-5-carboxylate 5-Isoxazolecarboxylic acid Isoxazole-5-carboxylic acid ISOXAZOLE-5-CARBOXYLIC ACID 1,2-oxazole-5-carboxylic acid 5-Carboxyisoxazole, 1,2-Oxazole-5-carboxylic acid, 5-Carboxy-1,2-oxazole |
| CAS | 21169-71-1 |
| InChI | InChI=1/C4H3NO3/c6-4(7)3-1-2-5-8-3/h1-2H,(H,6,7) |
| InChIKey | MIIQJAUWHSUTIT-UHFFFAOYSA-N |
21169-71-1 - Physico-chemical Properties
| Molecular Formula | C4H3NO3 |
| Molar Mass | 113.07 |
| Density | 1.5808 (rough estimate) |
| Melting Point | 144-148°C(lit.) |
| Boling Point | 211.74°C (rough estimate) |
| Flash Point | 148.1°C |
| Water Solubility | Slightly soluble in water. |
| Vapor Presure | 0.000125mmHg at 25°C |
| Appearance | yellowish-like powder |
| Color | Slightly yellow |
| pKa | 2.29±0.10(Predicted) |
| Storage Condition | Keep in dark place,Sealed in dry,Room Temperature |
| Sensitive | Moisture Sensitive |
| Refractive Index | 1.4543 (estimate) |
| MDL | MFCD00156151 |
21169-71-1 - 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. S25 - Avoid contact with eyes. S24 - Avoid contact with skin. S36 - Wear suitable protective clothing. S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. |
| WGK Germany | 3 |
| HS Code | 29349990 |
| Hazard Class | IRRITANT |
21169-71-1 - Introduction
Isoxazole-5-carboxylic acid is an organic compound with the chemical formula C4H3NO3. The following is a description of the nature, use, preparation and safety information of Isoxazole-5-carboxylic acid:
Nature:
Isoxazole-5-carboxylic acid is a colorless solid, it is slightly soluble in water, soluble in some organic solvents such as ethanol and chloroform. It has a neutral pH value and specific structural characteristics.
Use:
Isoxazole-5-carboxylic acid, as an intermediate in organic synthesis, is widely used in drug synthesis and pesticide synthesis. It can be used to synthesize a variety of ester compounds, such as pharmaceutical raw materials, pesticides and dyes.
Method:
One method of synthesizing Isoxazole-5-carboxylic acid is by oxidation of isoxazole derivatives. Specific steps include reacting an isoxazole compound with oxygen or a peroxide to form a Isoxazole-5-carboxylic acid.
Safety Information:
Specific security information Isoxazole-5-carboxylic an acid needs to be evaluated based on its specific use and processing conditions. Generally speaking, it is a combustible solid that may produce toxic gases when exposed to an open flame or when heated. Wear appropriate protective measures, including eye and skin protection, during use or handling. In case of contact or inhalation, rinse immediately with plenty of water and seek medical help.
Nature:
Isoxazole-5-carboxylic acid is a colorless solid, it is slightly soluble in water, soluble in some organic solvents such as ethanol and chloroform. It has a neutral pH value and specific structural characteristics.
Use:
Isoxazole-5-carboxylic acid, as an intermediate in organic synthesis, is widely used in drug synthesis and pesticide synthesis. It can be used to synthesize a variety of ester compounds, such as pharmaceutical raw materials, pesticides and dyes.
Method:
One method of synthesizing Isoxazole-5-carboxylic acid is by oxidation of isoxazole derivatives. Specific steps include reacting an isoxazole compound with oxygen or a peroxide to form a Isoxazole-5-carboxylic acid.
Safety Information:
Specific security information Isoxazole-5-carboxylic an acid needs to be evaluated based on its specific use and processing conditions. Generally speaking, it is a combustible solid that may produce toxic gases when exposed to an open flame or when heated. Wear appropriate protective measures, including eye and skin protection, during use or handling. In case of contact or inhalation, rinse immediately with plenty of water and seek medical help.
Last Update：2024-04-09 15:17:55
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View History
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