5-Amino-3-methyl-4-isoxazolecarboxamide CAS 35261-06-4
| CAS No. | 35261-06-4 |
| Molecular Formula | C5H7N3O2 |
| Molecular Weight | 141.13 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
5-Amino-3-methyl-4-isoxazolecarboxamide (CAS 35261-06-4), molecular formula C5H7N3O2 and molecular weight 141.13 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C5H7N3O2, 5-Amino-3-methyl-4-isoxazolecarboxamide contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 141.13 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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 5-Amino-3-methyl-4-isoxazolecarboxamide 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 | C5H7N3O2 |
| Molecular Weight | 141.13 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| 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.) | 1967 |
| Nitrogen Atoms | 3 |
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Recommended Standards
- 58535-41-4 N-(5-Methyl-1,2,4-oxadiazol-3-yl)acetamide MFCD22056555 (CAS 58535-41-4)
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- (6-Chloro-4-(chloromethyl)-5-(difluoromethyl)pyridin-3-yl)methanol (CAS 1806901-18-7)
- 1-((Benzyloxy)methyl)-5-fluoropyrimidine-2,4(1H,3H)-dione (CAS 66910-37-0)
- (3-(Hydroxymethyl)pyrrolidin-1-yl)(thiophen-3-yl)methanone (CAS 1249443-27-3)
- {2-[(4-chlorophenyl)sulfanyl]pyridin-3-yl}methyl N-(2-methylphenyl)carbamate (CAS 338413-64-2)
- 3-Methoxy-N-((2-methyl-2,3-dihydrobenzofuran-5-yl)methyl)propan-1-amine (CAS 878046-63-0)
- (2R,3R)-Ethyl 2-methylpiperidine-3-carboxylate (CAS 1820575-63-0)
- 3-Oxocyclobutane-1,2-dicarboxylic acid (CAS 2231673-47-3)
- Tris(4-pyridyl)-s-triazine (CAS 42333-78-8)
- 4'-Fluoro-2-hydroxy-3'-methyl-[1,1'-biphenyl]-4-carboxylic acid (CAS 1261949-40-9)
- Semaglutide Impurity 121 X Sodium Salt (CAS CATO-C4X-2226121)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com