Ethyl2-chloroxazole-4-carboxylate CAS 46081-18-9
| CAS No. | 46081-18-9 |
| Molecular Formula | C6H6ClNO3 |
| Molecular Weight | 175.57 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 Ethyl2-chloroxazole-4-carboxylate (CAS 46081-18-9), a certified reference material (molecular formula C6H6ClNO3, MW 175.57 g/mol) for analytical method development and quality control.
The molecular framework of Ethyl2-chloroxazole-4-carboxylate (C6H6ClNO3) is characterized by an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. 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 aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C6H6ClNO3 |
| Molecular Weight | 175.57 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1970 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Recommended Standards
- Ethyl 5-chloro-1H-1,2,3-triazole-4-carboxylate (CAS 81581-11-5)
- Methyl 2-(chloromethyl)-1,3-oxazole-4-carboxylate, 97% (CAS 208465-72-9)
- Ethyl 5-chloro-1,2-oxazole-3-carboxylate (CAS 343566-56-3)
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- N-Cyclohexyl 4-(aminomethyl)benzamide (CAS 172735-66-9)
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Why CATO?
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