4-methyloxazole-5-carboxylic acid CAS 2510-32-9
| CAS No. | 2510-32-9 |
| Molecular Formula | C5H5NO3 |
| Molecular Weight | 127.10 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C5H5NO3, 4-methyloxazole-5-carboxylic 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 127.10 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).
4-methyloxazole-5-carboxylic acid (CAS 2510-32-9) is a high-purity analytical reference standard with the molecular formula C5H5NO3 and a molecular weight of 127.10 g/mol.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 4-methyloxazole-5-carboxylic acid 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.
Physical & Chemical Properties
| Molecular Formula | C5H5NO3 |
| Molecular Weight | 127.10 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 |
| CAS Registry Year (est.) | 1957 |
| Nitrogen Atoms | 1 |
Related methyloxazole Standards
- 5-Methyloxazole-4-carboxylic Acid (CAS 103879-58-9)
- 4-Methyloxazole-2-carboxylic Acid (CAS 1196151-81-1)
- 2-Methyloxazole-5-carboxylic Acid (CAS 1216012-87-1)
- 2-Methyloxazole-4-carboxamide (CAS 100959-91-9)
- 2-Methyloxazole-5-carboxamide (CAS 856788-30-2)
- 4-Methyloxazole-5-carboxamide (CAS 4866-00-6)
- 23012-17-1 2-Methyloxazole-4-carboxylic acid DTXSID60337162 (CAS 23012-17-1)
- 4-Methyloxazole-5-acetonitrile (CAS 98197-76-3)
Recommended Standards
- 4-Methylisoxazole-5-carboxylic Acid (CAS 261350-46-3)
- 5-amino-1,2-oxazole-4-carboxamide (CAS 95298-76-3)
- 4-Methylisoxazole-3-carboxylic Acid (CAS 215872-46-1)
- 5-Amino-1H-1,2,3-triazole-4-carboxamide (CAS 4342-07-8)
- H-Met-Asp-OH (CAS 14595-65-4)
- (4-(Tert-butyl)phenyl)(4-ethoxyphenyl)methanone (CAS 951884-64-3)
- 4-Chloro-2-(pyridin-4-yl)quinazoline (CAS 6484-27-1)
- 1-(5,6-Bis(4-methoxyphenyl)-1,2,4-triazin-3-yl)piperidin-4-ol (CAS 59663-59-1)
- 2-Methylpent-4-en-1-ol (CAS 5673-98-3)
- 1-(3H-Imidazo[4,5-b]pyridin-2-yl)-N-methylmethanamine (CAS 175530-56-0)
- Minoxidil Impurity 26 (CAS CATO-C4X-170026)
- 2-Methoxy-4-(2-oxopyrrolidin-1-yl)benzaldehyde (CAS 1024209-02-6)
- 3-(Isopropylamino)azetidine-3-carboxamide dihydrochloride (CAS 686344-57-0)
- Anti-Inflammatory Peptide 3 (CAS 118850-73-0)
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