Methyl 4-methyloxazole-5-carboxylate CAS 23012-23-9
| CAS No. | 23012-23-9 |
| Molecular Formula | C6H7NO3 |
| Molecular Weight | 141.12 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Methyl 4-methyloxazole-5-carboxylate (C6H7NO3) contains an amino-acid-derived structure, 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 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).
Methyl 4-methyloxazole-5-carboxylate (CAS 23012-23-9) is a high-purity analytical reference standard with the molecular formula C6H7NO3 and a molecular weight of 141.12 g/mol.
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.
CATO manufactures Methyl 4-methyloxazole-5-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.
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.) | 1963 |
| Nitrogen Atoms | 1 |
Related Methyl Standards
- 5-Methyloxazole-4-acetic Acid (CAS 1507656-31-6)
- 4-Methyloxazole-5-acetic Acid (CAS 98140-74-0)
- 2-Methyloxazole-4-carbohydrazide (CAS 500341-65-1)
- 2-Methyloxazole-5-carbohydrazide (CAS 90585-89-0)
- 2-Methyloxazole-4-carbothioamide (CAS 90980-10-2)
- 2-Ethyl-4-methyloxazole-5-carbaldehyde (CAS 1152617-22-5)
- 2-Methyloxazole-5-carbonyl chloride (CAS 1443210-11-4)
- 4-Methyloxazole-5-carbonyl chloride (CAS 62348-24-7)
Recommended Standards
- Methyl 4-methylisoxazole-5-carboxylate (CAS 261350-48-5)
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Why CATO?
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