Ethyl 4-(4-chlorobenzoyl)isoxazole-3-carboxylate CAS 952182-77-3
| CAS No. | 952182-77-3 |
| Molecular Formula | C13H10ClNO4 |
| Molecular Weight | 279.68 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Ethyl 4-(4-chlorobenzoyl)isoxazole-3-carboxylate (C13H10ClNO4) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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 supplies Ethyl 4-(4-chlorobenzoyl)isoxazole-3-carboxylate (CAS 952182-77-3), a certified reference material (molecular formula C13H10ClNO4, MW 279.68 g/mol) for analytical method development and quality control.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures Ethyl 4-(4-chlorobenzoyl)isoxazole-3-carboxylate 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 | C13H10ClNO4 |
| Molecular Weight | 279.68 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-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, acetonitrile, DMSO, water (slightly soluble) |
| 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related Ethyl Standards
- Ethyl 4-(3-chlorobenzoyl)isoxazole-3-carboxylate (CAS 338761-68-5)
- 2-(4-Chlorobenzoyl)benzoyl chloride (CAS 42156-76-3)
- 1-(4-Chlorobenzoyl)-N-methyl-4-nitro-1H-pyrazol-3-amine (CAS 318517-38-3)
- 2-(5-(4-Chlorobenzoyl)thiophen-2-yl)acetic acid (CAS 33061-80-2)
- 2-{[(4-chlorobenzoyl)oxy]ethanimidoyl}-1,3-thiazole 866050-61-5 KS-00002WRJ (CAS 866050-61-5)
- 3-(3-Chlorobenzoyl)quinoline (CAS 1178743-28-6)
- 3-(3-chlorobenzoyl)-4H,5H,6H-cyclopenta[b]thiophen-2-amine (CAS 399043-34-6)
- 3-(4-Chlorobenzoyl)-4h,5h,6h-cyclopenta[b]thiophen-2-amine (CAS 304018-04-0)
Recommended Standards
- Ethyl 5-(2-chloronicotinoyl)furan-2-carboxylate (CAS 884504-83-0)
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- 6-(6-Chloropyridin-3-yl)-8-oxo-5,7-diazaspiro[3.4]Oct-5-ene-2-carboxylic acid (CAS 2227206-04-2)
- [(4-fluorophenyl)methyl](prop-2-yn-1-yl)amine hydrochloride (CAS 1158359-45-5)
- Thiazole-2-sulfonic acid (CAS 172412-76-9)
- 2',6'-Dimethoxy-[1,1'-biphenyl]-4-carbaldehyde (CAS 791839-59-3)
- 4-Methoxy-3-methylbutan-2-ol (CAS 1344094-45-6)
- N-Benzyl-N,N-dibutylbutan-1-aminium iodide (CAS 60754-76-9)
- N-methyl-1-(naphthalen-2-yl)methanimine oxide (CAS 41106-04-1)
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- 4-Nitroisoindoline hydrochloride (CAS 1159826-78-4)
- Semaglutide impurity 269 (CAS CATO-C4X-2226269)
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