2-(3-Hydroxyisoxazol-5-yl)acetic acid CAS 54489-27-9
| CAS No. | 54489-27-9 |
| Molecular Formula | C5H5NO4 |
| Molecular Weight | 143.10 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 2-(3-Hydroxyisoxazol-5-yl)acetic acid.
CATO supplies 2-(3-Hydroxyisoxazol-5-yl)acetic acid (CAS 54489-27-9), a certified reference material (molecular formula C5H5NO4, MW 143.10 g/mol) for analytical method development and quality control.
2-(3-Hydroxyisoxazol-5-yl)acetic acid (C5H5NO4) contains a carbohydrate-derived structure, an amide group. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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 2-(3-Hydroxyisoxazol-5-yl)acetic 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 | C5H5NO4 |
| Molecular Weight | 143.10 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.) | 1972 |
| Nitrogen Atoms | 1 |
Related Hydroxyisoxazol Standards
- 2-(5-Hydroxyisoxazol-3-yl)acetic acid (CAS 178168-21-3)
- 5-Hydroxyisoxazol-3(2H)-one (CAS 675198-91-1)
- Methyl 4-(3-hydroxyisoxazol-5-yl)piperidine-1-carboxylate (CAS 439944-71-5)
- Methyl 4-(3-hydroxyisoxazol-5-yl)-4-methylpiperidine-1-carboxylate (CAS 439944-47-5)
- Benzyl 4-(3-hydroxyisoxazol-5-yl)piperidine-1-carboxylate (CAS 167414-76-8)
Recommended Standards
- 2-(3-Hydroxy-1H-1,2,4-triazol-5-yl)acetic acid (CAS 70486-43-0)
- 2-(5-Amino-2h-1,2,3,4-tetrazol-2-yl)acetic acid (CAS 21743-72-6)
- 1-Methyl-5-nitro-1,3-dihydro-2H-imidazol-2-one (CAS 63062-13-5)
- 2-(5-Imino-2,5-dihydro-1h-tetrazol-1-yl)acetic acid (CAS 21743-62-4)
- 1,2-Dimethyl-1h-benzo[d]imidazole-4-carboxylic acid (CAS 208772-09-2)
- 5-Fluoro-N-(piperidin-3-yl)pyrimidin-2-amine hydrochloride (CAS 1261230-29-8)
- 2-Bromo-5-propylpyridine (CAS 1159821-61-0)
- Asenapine Impurity 4 (CAS CATO-C4X-19474)
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- Sperm Peptide P10G (H-2424.0001) (CAS 137353-73-2)
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