Ethyl 4-methyloxazole-2-carboxylate CAS 90892-99-2
| CAS No. | 90892-99-2 |
| Molecular Formula | C7H9NO3 |
| Molecular Weight | 155.15 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Ethyl 4-methyloxazole-2-carboxylate 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.
CATO supplies Ethyl 4-methyloxazole-2-carboxylate (CAS 90892-99-2), a certified reference material (molecular formula C7H9NO3, MW 155.15 g/mol) for analytical method development and quality control.
Based on its molecular formula C7H9NO3, Ethyl 4-methyloxazole-2-carboxylate 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 155.15 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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 | C7H9NO3 |
| Molecular Weight | 155.15 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| 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.) | 1982 |
| Nitrogen Atoms | 1 |
Related Ethyl Standards
- Ethyl 2-Methyloxazole-4-carboxylate (CAS 10200-43-8)
- 5-Ethyl-2-methyloxazole-4-carboxylic acid (CAS 113366-75-9)
- Methyl 2-Methyloxazole-5-acetate (CAS 1276083-60-3)
- 4-Ethyl-2-methyloxazole-5-carboxylic acid (CAS 1564709-36-9)
- Ethyl 4-Methyloxazole-5-carboxylate (CAS 20485-39-6)
- 4-Methyloxazole-2-carboxylic acid (sodium) (CAS 2137530-82-4)
- 2-Methyloxazole-5-carbonyl chloride (CAS 1443210-11-4)
- 4-Methyloxazole-5-carbonyl chloride (CAS 62348-24-7)
Recommended Standards
- Ethyl 4-methylisoxazole-5-carboxylate (CAS 261350-50-9)
- Ethyl 4-methylisoxazole-3-carboxylate (CAS 38061-69-7)
- Ethyl 4-Methyl-1H-1,2,3-triazole-5-carboxylate (CAS 4343-73-1)
- Ethyl 4-amino-1H-pyrazole-5-carboxylate hydrochloride (CAS 55904-61-5)
- Ethyl 2-amino-3-(5-fluoro-1H-indol-3-yl)propanoate (CAS 154170-01-1)
- (S)-Bicyclo[2.2.2]octan-2-amine (CAS 163580-79-8)
- 4-(4-Benzyl-1-piperazino)-2-bromophenol (CAS 1171917-64-8)
- 1,3-Bis(4-chlorophenyl)-1H-imidazol-3-ium chloride (CAS 141556-46-9)
- 3-(3-Fluorophenyl)-1-(3-methoxyphenyl)propan-1-one (CAS 898788-73-3)
- Esomeprazole Impurity 38 (CAS 143016-68-6)
- Ceftazidime EP Impurity B (CAS 97148-38-4)
- 1,2-Dimethyldihydropyridazine-3,5(2H,4H)-dione (CAS 366795-48-4)
- (9-Oxo-9H-xanthene-2,7-diyl)diboronic Acid (CAS 2133447-57-9)
- Semaglutide impurity 268 (CAS CATO-C4X-2226268)
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