1-(3-Methoxyisoxazol-5-yl)ethanone CAS 54258-26-3
| CAS No. | 54258-26-3 |
| Molecular Formula | C6H7NO3 |
| Molecular Weight | 141.12 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures 1-(3-Methoxyisoxazol-5-yl)ethanone 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.
1-(3-Methoxyisoxazol-5-yl)ethanone (CAS 54258-26-3), molecular formula C6H7NO3 and molecular weight 141.12 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 1-(3-Methoxyisoxazol-5-yl)ethanone (C6H7NO3) 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 141.12 g/mol, it falls into the low-molecular-weight range. 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).
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
Physical & Chemical Properties
| Molecular Formula | C6H7NO3 |
| Molecular Weight | 141.12 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 |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1972 |
| Nitrogen Atoms | 1 |
Related Methoxyisoxazol Standards
- 1-(3-Methoxyisoxazol-5-yl)propan-1-one (CAS 54258-29-6)
- 2-(3-Methoxyisoxazol-5-yl)propan-2-amine (CAS 105175-08-4)
- 2-(3-Methoxyisoxazol-5-yl)-N-methylethanamine (CAS 687602-59-1)
- 3-(3-Methoxyisoxazol-5-yl)propan-1-amine (CAS 58893-41-7)
- 2-(5-Methoxyisoxazol-3-yl)acetic acid (CAS 153773-43-4)
- 3-(3-Methoxyisoxazol-5-yl)propan-1-ol (CAS 95406-76-1)
- 3-Methoxyisoxazol-4-amine (CAS 2573216-39-2)
- 3-Methoxyisoxazol-5-amine (CAS 35143-69-2)
Recommended Standards
- 1-(3-(Hydroxymethyl)isoxazol-5-yl)ethanone (CAS 866002-71-3)
- 1-(4-(Hydroxymethyl)oxazol-2-yl)ethan-1-one (CAS 2610620-78-3)
- (Z)-3-(1-Hydroxyethylidene)pyrrolidine-2,4-dione (CAS 66056-61-9)
- 1-[5-(hydroxymethyl)-1,2-oxazol-3-yl]ethan-1-one (CAS 92096-06-5)
- Tert-butyl 6-(benzyloxy)-2-azaspiro[3.3]Heptane-2-carboxylate (CAS 1181816-16-9)
- [2-methoxy-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl] acetate (CAS 917757-44-9)
- 6-Bromonicotinic acid 6-bromo-3-pyridine carboxylic acid 6-Bromopyridine-3-carboxylic acid 2-Bromo-5-pyridinecarboxylic acid 6-Bromo-3-pyridinecarboxylic acid 2-Bromopyridine-5-carboxylic acid 6311-35-9 (CAS 6311-35-9)
- 1-(4-Bromo-2-methyl-6-nitrophenyl)-1H-pyrrole (CAS 860650-88-0)
- 1-(2-Ethoxyphenyl)-1H-1,2,3,4-tetrazole-5-thiol (CAS 22347-26-8)
- Ethyl 2-({6-[(benzenesulfonyl)methyl]-2-phenylpyrimidin-4-yl}sulfanyl)acetate (CAS 303147-42-4)
- 1,1,1-Tribromo-3,3,3-trifluoropropane (CAS 1393524-84-9)
- tert-Butyl 4-(3-amino-6-methoxypyridin-2-yl)butanoate (CAS 2222856-54-2)
- 4-(3,4-Difluorobenzoyl)phenyl acetate (CAS 890100-03-5)
- Semaglutide Impurity 164 (CAS CATO-C4X-2226164)
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