Ethyl 3-phenyl-4,5-dihydroisoxazole-5-carboxylate CAS 50899-14-4
| CAS No. | 50899-14-4 |
| Molecular Formula | C12H13NO3 |
| Molecular Weight | 219.24 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Ethyl 3-phenyl-4,5-dihydroisoxazole-5-carboxylate meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Ethyl 3-phenyl-4,5-dihydroisoxazole-5-carboxylate (CAS 50899-14-4), molecular formula C12H13NO3 and molecular weight 219.24 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage, Ethyl 3-phenyl-4,5-dihydroisoxazole-5-carboxylate is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 219.24 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 | C12H13NO3 |
| Molecular Weight | 219.24 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1971 |
| Nitrogen Atoms | 1 |
Recommended Standards
- Ethyl 3-isocyanato-3-phenylpropanoate (CAS 88636-83-3)
- Ethyl 4-hydroxy-1-methyl-1H-indole-2-carboxylate (CAS 310390-56-8)
- Ethyl 3-hydroxy-7-methyl-1H-indole-2-carboxylate (CAS 459818-00-9)
- Ethyl 4-methoxy-1H-indole-2-carboxylate (CAS 43142-25-2)
- 2-(Benzo[d]oxazol-2-yl)-4H-benzo[d][1,3]thiazin-4-one (CAS 127007-44-7)
- 2,4-Dibromo-3,6-dimethylaniline (CAS 26829-89-0)
- Pyrrolidine-3-carboxylic acid (2-imidazol-1-yl-ethyl)-amide dihydrochloride (CAS 1185304-24-8)
- Cabozantinib Impurity 44 (CAS CATO-C4X-201844)
- 5-Amino-1-(1,2,5-trimethylpiperidin-4-yl)-1H-pyrazol-3-ol (CAS 609809-95-2)
- Methyl({[1-(propan-2-yl)-1h-pyrazol-5-yl]methyl})amine (CAS 1007464-33-6)
- 3-(2-Benzylphenoxy)piperidine (CAS 946725-80-0)
- (2-(3,5-Dimethyl-1H-pyrazol-1-yl)-5-methoxyphenyl)methanol (CAS 918812-46-1)
- 4,5-Dichloro-1,6-dimethyl-1H-indole-2-carboxylic acid (CAS 2244454-05-3)
- [Glu]17-Liraglutide (CAS CATO-C4X-199236)
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