Oxazole-2,4-dicarboxylic acid 2-methyl ester CAS 885704-73-4
| CAS No. | 885704-73-4 |
| Molecular Formula | C6H5NO5 |
| Molecular Weight | 171.11 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
CATO supplies Oxazole-2,4-dicarboxylic acid 2-methyl ester (CAS 885704-73-4), a certified reference material (molecular formula C6H5NO5, MW 171.11 g/mol) for analytical method development and quality control.
Based on its molecular formula C6H5NO5, Oxazole-2,4-dicarboxylic acid 2-methyl ester contains a carbohydrate-derived structure, an amide group; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 171.11 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C6H5NO5 |
| Molecular Weight | 171.11 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) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 1 |
Related Oxazole Standards
- 2-methyl-1,3-oxazole-4,5-dicarboxylic acid (CAS 855404-45-4)
- 5-Phenyl-1,3-oxazole-4-carbonitrile (CAS 254880-28-9)
- 5-Butyl-1,3-oxazole-4-carboxylic acid (CAS 143659-18-1)
- 4-Phenyl-1,3-oxazole-2-carbaldehyde (CAS 1199623-97-6)
- 2-Phenyl-1,3-oxazole-5-carbaldehyde (CAS 92629-13-5)
- Oxazole-2-sulfonyl chloride (CAS 184170-50-1)
- 1,2-Oxazole-4-sulfonyl chloride (CAS 933740-94-4)
- 5-Phenyl-1,3-oxazole-2-thiol (CAS 16172-23-9)
Recommended Standards
- n-Hydroxy-2,4-dioxo-1,2,3,4-tetrahydropyrimidine-5-carboxamide (CAS 42022-47-9)
- 309740-95-2 4-Acetylamino-furazan-3-carboxylic acid 9814AD C5H5N3O4 (CAS 309740-95-2)
- N-(5-Nitro-1H-1,2,4-triazol-3-yl)acetamide (CAS 3572-23-4)
- 3346-23-4 4-quinolinecarboxylic acid, 2-hydroxy-6-methyl- AR-1G4592 (CAS 3346-23-4)
- 2-(4-Isopropylphenoxy)ethane-1-sulfonyl chloride (CAS 1018340-55-0)
- Tetrahydro-1(2H)-pyrimidinebutanamine (CAS 73453-98-2)
- 2-(3,4-Dimethoxybenzoyl)pyridine (CAS 27693-42-1)
- Momelotinib impurity 6 (CAS CATO-C4X-33776)
- 1-(2-Phenylethyl)pyridinium Bromide (CAS 6324-18-1)
- 2-Hydroxy-3-methoxy-5-methylbenzoic acid (CAS 4386-42-9)
- 1,3-Dichloro-2-(methoxymethoxy)propane-d5 1189863-31-7 [2-Chloro-1-(chloromethyl)ethoxy]methoxymethane-d5 (CAS 1189863-31-7)
- di-tert-Butyl (2S,5S)-5-hydroxypiperidine-1,2-dicarboxylate (CAS 1253856-42-6)
- 8-Nitroquinoline-2-carbonitrile (CAS 857685-17-7)
- Semaglutide impurity 193 (CAS CATO-C4X-2226193)
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