4-Amino-3-methylisoxazole-5-carboxylic acid CAS 83988-31-2
| CAS No. | 83988-31-2 |
| Molecular Formula | C5H6N2O3 |
| Molecular Weight | 142.11 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 4-Amino-3-methylisoxazole-5-carboxylic acid is closely related to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies 4-Amino-3-methylisoxazole-5-carboxylic acid (CAS 83988-31-2), a certified reference material (molecular formula C5H6N2O3, MW 142.11 g/mol) for analytical method development and quality control.
Structurally, 4-Amino-3-methylisoxazole-5-carboxylic acid (C5H6N2O3) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 142.11 g/mol, it falls into the low-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 4-Amino-3-methylisoxazole-5-carboxylic acid under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C5H6N2O3 |
| Molecular Weight | 142.11 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.) | 1980 |
| Nitrogen Atoms | 2 |
Related Amino Standards
- Methyl 2-amino-1,3-oxazole-4-carboxylate (CAS 1000576-38-4)
- 2-amino-5-methyloxazole-4-carboxylic acid (CAS 1240596-17-1)
- 3-Amino-5-methylisoxazole-4-carboxylic acid (CAS 89322-88-3)
- 5-Amino-3-methylisoxazole-4-carboxylic Acid (CAS 84661-50-7)
- 5-Amino-3-oxo-2,3-dihydro-1H-pyrazole-1-carboxamide (CAS 119768-91-1)
- 3-Amino-5-hydroxy-1H-pyrazole-1-carboxamide (CAS 119769-05-0)
- 2-(5-Amino-1h-1,2,4-triazol-1-yl)acetic acid (CAS 1341722-85-7)
- 2-(4-Amino-2h-1,2,3-triazol-2-yl)acetic acid (CAS 1368124-71-3)
Recommended Standards
- 4,6-Dihydroxy-5-methoxypyrimidine (CAS 5193-84-0)
- 4-Methoxypyrimidine-2,5-diol (CAS 55196-65-1)
- 4-(Hydroxymethyl)furan-3-carboxylic acid (CAS 88550-24-7)
- 4-Methyl-5-oxo-4,5-dihydro-1H-pyrazole-3-carboxylic acid (CAS 343929-13-5)
- (4-(Cyclohexylcarbamoyl)-2-fluorophenyl)boronic acid (CAS 874289-27-7)
- 1-[4-(3-Methoxyphenoxy)phenyl]ethanone (CAS 93899-01-5)
- 2-(Butan-2-yloxy)acetic acid (CAS 99116-02-6)
- 1-(3-Phenyl-1,2,4-oxadiazol-5-yl)ethan-1-one (CAS 90770-98-2)
- 2-chloro-6-(pyridin-4-ylmethyl)pyridine hydrochloride (CAS 1803598-55-1)
- (2-Phenylthiazol-4-yl)(1,5-dioxa-9-azaspiro[5.5]undecan-9-yl)methanone (CAS 1797872-84-4)
- 2-(Isopropyl(1-phenylpropyl)amino)acetic acid (CAS 1353986-54-5)
- 1,1-Difluoropropan-1-amine (CAS 2839473-60-6)
- Ropinirole Impurity 3 HCl (CAS 1076199-41-1)
- [D-Ser8]-Semaglutide A (CAS CATO-C4X-2226116)
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