4,5-Dimethyl-2-oxazolecarboxylic Acid CAS 1240605-72-4
| CAS No. | 1240605-72-4 |
| Molecular Formula | C6H7NO3 |
| Molecular Weight | 141.12 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
4,5-Dimethyl-2-oxazolecarboxylic Acid (CAS 1240605-72-4), molecular formula C6H7NO3 and molecular weight 141.12 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C6H7NO3, 4,5-Dimethyl-2-oxazolecarboxylic Acid 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 141.12 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).
CATO manufactures 4,5-Dimethyl-2-oxazolecarboxylic Acid 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.) | 1990 |
| Nitrogen Atoms | 1 |
Related Dimethyl Standards
- 2,4-Dimethyl-5-oxazolecarboxylic Acid (CAS 2510-37-4)
- 2,5-Dimethyl-3-nitrofuran (CAS 61759-73-7)
- 1,3-Dimethyl-1H-1,2,4-triazole-5-carboxylic acid (CAS 1023307-69-8)
- 1,3-Dimethyl-5-nitro-1h-pyrazole (CAS 1170783-25-1)
- 1,2-Dimethyl-4-nitro-1H-imidazole (CAS 13230-04-1)
- 4,5-Dimethyl-4H-1,2,4-triazole-3-carboxylic acid (CAS 1393540-04-9)
- 1,5-Dimethyl-1H-1,2,4-triazole-3-carboxylic acid (CAS 1393540-58-3)
- 3,5-Dimethyl-4-nitropyrazole (CAS 14531-55-6)
Recommended Standards
- methyl 2-oxazol-4-ylacetate (CAS 1216261-09-4)
- 2-[(prop-2-yn-1-yl)carbamoyl]acetic acid (CAS 1249030-90-7)
- Ethyl 3-cyano-3-oxopropanoate (CAS 120069-02-5)
- 5-methyl-2-Oxazolecarboxylic acid methyl ester (CAS 124999-43-5)
- Ethyl 1-[2-(4-chlorophenyl)-2-oxoethyl]-1H-1,2,4-triazole-3-carboxylate (CAS 1638612-68-6)
- 6-amino-4-methylpyridin-3-ol (CAS 1033203-10-9)
- 2-Bromo-6-chloro-3,4-difluoroaniline (CAS 1983156-77-9)
- tert-Butyl 2-(2-bromo-4-formylphenoxy)acetate (CAS 850349-12-1)
- 2-(3,4-Dihydro-2h-1-benzopyran-6-yl)propanoic acid (CAS 63476-57-3)
- 2-Hydroxyethyl carbamimidothioate hydrochloride (CAS 16111-09-4)
- 4-((4-Fluorophenyl)amino)pent-3-en-2-one (CAS 1978-63-8)
- 3-(1-Piperidinylmethyl)-morpholine dihydrochloride (CAS 137289-04-4)
- 1-(4-(Aminomethyl)piperidin-1-yl)prop-2-en-1-one (CAS 1247169-68-1)
- Pancreatic Polypeptide (human) trifluoroacetate salt (CAS 75976-10-2)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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