2-(2-Hydroxyphenyl)-4,5-dihydrooxazole-4-carboxylic acid CAS 37592-62-4
| CAS No. | 37592-62-4 |
| Molecular Formula | C10H9NO4 |
| Molecular Weight | 207.18 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
2-(2-Hydroxyphenyl)-4,5-dihydrooxazole-4-carboxylic acid (CAS 37592-62-4), molecular formula C10H9NO4 and molecular weight 207.18 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 2-(2-Hydroxyphenyl)-4,5-dihydrooxazole-4-carboxylic acid (C10H9NO4) is characterized by an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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).
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.
Physical & Chemical Properties
| Molecular Formula | C10H9NO4 |
| Molecular Weight | 207.18 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 |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1967 |
| Nitrogen Atoms | 1 |
Related Hydroxyphenyl Standards
- (E)-4-((2-hydroxyphenyl)amino)-4-oxobut-2-enoic acid (CAS 1161742-66-0)
- (E)-4-((4-Hydroxyphenyl)amino)-4-oxobut-2-enoic acid (CAS 143629-26-9)
- (S)-2-(2-Hydroxyphenyl)-4,5-dihydrooxazole-4-carboxylic acid (CAS 155880-02-7)
- (R)-2-(2-Hydroxyphenyl)-4,5-dihydrooxazole-4-carboxylic acid (CAS 155880-11-8)
- (Z)-4-((2-Hydroxyphenyl)amino)-4-oxobut-2-enoic acid (CAS 59256-46-1)
- (Z)-4-((4-hydroxyphenyl)amino)-4-oxobut-2-enoic acid (CAS 28173-23-1)
- 3-(2-Hydroxyphenyl)-4,5-dihydro-1,2-oxazole-5-carboxylic acid (CAS 712347-85-8)
- 3-[(2-hydroxyphenyl)carbamoyl]prop-2-enoic acid (CAS 83549-07-9)
Recommended Standards
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- 2-(2-oxo-3H-1,4-benzoxazin-4-yl)acetic acid (CAS 6243-07-8)
- tert-Butyl [1,2,4]triazolo[1,5-a]pyrazin-2-ylcarbamate (CAS 1434053-26-5)
- 2-(4-(Pentylthio)phenyl)ethan-1-ol (CAS 1443307-44-5)
- 2-(3',4'-Difluoro-[1,1'-biphenyl]-2-yl)aceticacid (CAS 886363-33-3)
- 1-(4-Fluoro-3-(trifluoromethyl)phenyl)cyclopentanecarbonitrile (CAS 1260804-75-8)
- 1-(1-Benzyl-4,4-dimethylpyrrolidin-3-yl)ethanone (CAS 351370-01-9)
- Calcium naphthalen-1-yl hydrogen phosphate (CAS 4588-86-7)
- 4-Cyano-6-(difluoromethyl)-3-iodopicolinoyl chloride (CAS 1805495-85-5)
- 2,8-Dimethylquinolin-7-ol (CAS 1412256-52-0)
- 2-Isopropylfuran (CAS 10599-59-4)
- Galanin-Like Peptide (porcine) trifluoroacetate salt (CAS 245114-96-9)
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