ISOXAZOLE-5-CARBOXYLIC ACID
- CAS NO.：21169-71-1
- Empirical Formula: C4H3NO3
- Molecular Weight: 113.07
- MDL number: MFCD00156151
- SAFETY DATA SHEET (SDS)
- Update Date: 2025-07-04 16:04:00
What is ISOXAZOLE-5-CARBOXYLIC ACID?
Chemical properties
slightly yellow powder
The Uses of ISOXAZOLE-5-CARBOXYLIC ACID
Reaction conditions were found to allow the exclusive formation of isoxazole-5-carboxylic acid derivatives by conjugate addition, in acidic medium, of hydroxylamine to β-alkoxyvinyl trichloromethyl ketone in synthesis and reactivity of isoxazoles. Isoxazole-5-carboxylic acid participates in the Synthesis and evaluation of acylguanidine FXa inhibitors. 1, 1, 1-trichloro-4-methoxy-3-penten-2-one postulated in the preparation of isoxazole-5-carboxylic acid from trichloroacetyl chloride, ethyl vinyl ether and hydroxylamine is developed in a fully saturated nitrogen atom theerefore there is no possibility of conjugation with 4- substituents.
General Description
Isoxazole-5-carboxylic acid can be obtained via dehydration of 5-trichloromethylisoxazole.
Properties of ISOXAZOLE-5-CARBOXYLIC ACID
| Melting point: | 144-148 °C(lit.) |
| Boiling point: | 211.74°C (rough estimate) |
| Density | 1.5808 (rough estimate) |
| refractive index | 1.4543 (estimate) |
| storage temp. | Keep in dark place,Sealed in dry,Room Temperature |
| pka | 2.29±0.10(Predicted) |
| form | Powder |
| color | Slightly yellow |
| Water Solubility | Slightly soluble in water. |
| Sensitive | Moisture Sensitive |
| CAS DataBase Reference | 21169-71-1(CAS DataBase Reference) |
Safety information for ISOXAZOLE-5-CARBOXYLIC ACID
| Signal word | Warning |
| Pictogram(s) |
 Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation |
| Precautionary Statement Codes |
P261:Avoid breathing dust/fume/gas/mist/vapours/spray. P304+P340:IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. P405:Store locked up. |
Computed Descriptors for ISOXAZOLE-5-CARBOXYLIC ACID
| InChIKey | MIIQJAUWHSUTIT-UHFFFAOYSA-N |
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