Methyl 3-(5-methyl-3-phenylisoxazol-4-yl)-3-oxopropanoate CAS 676348-61-1
| CAS No. | 676348-61-1 |
| Molecular Formula | C14H13NO4 |
| Molecular Weight | 259.26 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Methyl 3-(5-methyl-3-phenylisoxazol-4-yl)-3-oxopropanoate 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.
Methyl 3-(5-methyl-3-phenylisoxazol-4-yl)-3-oxopropanoate (CAS 676348-61-1), molecular formula C14H13NO4 and molecular weight 259.26 g/mol, is a CATO reference standard with documented purity and traceability.
Methyl 3-(5-methyl-3-phenylisoxazol-4-yl)-3-oxopropanoate (C14H13NO4) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C14H13NO4 |
| Molecular Weight | 259.26 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1985 |
| Nitrogen Atoms | 1 |
Recommended Standards
- Methyl 3-((4-methyl-6-oxo-1,6-dihydropyrimidin-2-yl)amino)benzoate (CAS 691398-07-9)
- Methyl 3-(furan-2-carboxamido)-2-methylbenzoate (CAS 641604-61-7)
- Methyl 2-(5-methylfuran-2-carboxamido)benzoate (CAS 545348-77-4)
- Methyl 3-[(5-methylfuran-2-carbonyl)amino]benzoate (CAS 915909-04-5)
- 5-(Ethoxymethylene)-2-thioxothiazolidin-4-one (CAS 86240-28-0)
- 2-Chloro-4-(4-chlorophenyl)benzoic acid (CAS 334018-55-2)
- 2-(Hydroxymethyl)cyclobutan-1-ol (CAS 2231675-22-0)
- Formoterol Fumarate Dihydrate (CAS 183814-30-4)
- 4-CHLORO-6,7-DICHLOROQUINOLINE 855763-18-7 CTK5F5259 (CAS 855763-18-7)
- Leukotriene D4 (CAS 73836-78-9)
- 2-((4-Isopropylphenyl)sulfonyl)-2-(pyridin-3-yl)ethan-1-amine (CAS 938379-01-2)
- 5-Benzoyl-6-(bromomethyl)-1,3-dimethylpyrimidine-2,4(1H,3H)-dione (CAS 443667-38-7)
- 2,4-Dichloro-6-fluorophenylboronic acid (CAS 1160561-26-1)
- Semaglutide impurity 235 (CAS CATO-C4X-2226235)
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