Isoxazole-3-carboxylic acid CAS 3209-71-0
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 3209-71-0 |
| Molecular Formula | C4H3NO3 |
| Molecular Weight | 113.07 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Isoxazole-3-carboxylic acid (CAS 3209-71-0) is a pharmaceutical standards certified reference material from CATO. Molecular formula: C4H3NO3. Molecular weight: 113.07 g/mol. ISO 17034 accredited production ensures traceable purity and reliable analytical results.
Physical & Chemical Properties
| Molecular Formula | C4H3NO3 |
| Molecular Weight | 113.07 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1957 |
| Nitrogen Atoms | 1 |
Related Isoxazole Standards
- Isoxazole-4-boronic Acid (CAS 1008139-25-0)
- Isoxazole-5-carboxamide (CAS 89032-77-9)
- Isoxazole-4,5-dicarbonitrile (CAS 1256633-32-5)
- Isoxazole-3,5-diamine (CAS 412301-06-5)
- Isoxazole-5-methanol (CAS 98019-60-4)
- Isoxazole-4-acetic Acid (CAS 141679-57-4)
- Isoxazole-4-carboxylic acid methyl ester (CAS 15166-81-1)
- Isoxazole-4-carbohydrazide (CAS 885273-78-9)
Recommended Standards
- Ethyl 5-Methyloxazole-2-carboxylate (CAS 33123-68-1)
- 1-(4-amino-3-bromo-5-chlorophenyl)-2-(dimethylamino)ethanol 1-(4-azanyl-3-bromanyl-5-chloranyl-phenyl)-2-(dimethylamino)ethanol 4814-74-8 A827481 (CAS 4814-74-8)
- 5-Isoxazolecarboxylic Acid (CAS 21169-71-1)
- 2-Chloro-4-fluoro-3-methoxypyridine (CAS 1227572-76-0)
- Ethyl 3-(1H-indol-3-ylmethyl)-1,2,4-oxadiazole-5-carboxylate (CAS 1010900-45-4)
- Xanthosine (CAS 146-80-5)
- 3-(tert-butylamino)-1,1,1-trifluoropropan-2-ol (CAS 380609-28-9)
- (S)-1-(4-(trifluoromethoxy)phenyl)but-3-en-1-amine (CAS 1270144-99-4)
- 1-(3-Chlorobenzyl)-3-formyl-1H-indole-2-carboxylic acid (CAS 903160-54-3)
- MLCK inhibitor peptide 18 (CAS 224579-74-2)
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