3-(2,6-Dichlorophenyl)-5-methyl-4-isoxazolylcarboxylic Acid Ethyl Ester CAS 24248-21-3
| CAS No. | 24248-21-3 |
| Molecular Formula | C13H11Cl2NO3 |
| Molecular Weight | 300.14 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.
3-(2,6-Dichlorophenyl)-5-methyl-4-isoxazolylcarboxylic Acid Ethyl Ester (CAS 24248-21-3) is a high-purity analytical reference standard with the molecular formula C13H11Cl2NO3 and a molecular weight of 300.14 g/mol.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution, 3-(2,6-Dichlorophenyl)-5-methyl-4-isoxazolylcarboxylic Acid Ethyl Ester is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 300.14 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
CATO manufactures 3-(2,6-Dichlorophenyl)-5-methyl-4-isoxazolylcarboxylic Acid Ethyl Ester 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 | C13H11Cl2NO3 |
| Molecular Weight | 300.14 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1963 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related Dichlorophenyl Standards
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- 1-(2,6-dichlorophenyl)-5-(propan-2-yl)-1H-1,2,4-triazole-3-carboxylic acid (CAS 1154206-19-5)
- Ethyl 2-(3,4-Dichlorophenyl)-5-methyloxazole-4-carboxylate (CAS 1443981-03-0)
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Recommended Standards
- 2-Chloroethyl 2-((5-chloroquinolin-8-yl)oxy)acetate (CAS 88350-11-2)
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- 2-[(5,7-dichloro-2-methylquinolin-8-yl)oxy]acetohydrazide (CAS 730949-87-8)
- 3-Amino-3-(5-(2,4-dichlorophenyl)furan-2-yl)propanoic acid (CAS 773125-55-6)
- 3-Chloro-6-(piperidin-4-ylmethoxy)pyridazine (CAS 1225227-26-8)
- Octabromodibenzofuran (CAS 103582-29-2)
- 4,6-Dichloro-2-cyclopropyl-5-nitropyrimidine (CAS 75438-78-7)
- (4-Methyl-6-(phenylamino)pyridin-3-yl)(phenyl)methanone (CAS 1355204-77-1)
- 3-a-aminocholestane (3AC, SHIP1 Inhibitor) (CAS 2206-20-4)
- N-Methyl-5,6,7,8-tetrahydroisoquinolin-8-amine (CAS 497251-67-9)
- Safinamide Impurity 43 (CAS CATO-C4X-159043)
- (6-Methylpyridin-3-yl)methanamine dihydrochloride (CAS 443344-75-0)
- trans-2-(3-Fluorophenyl)cyclohexanol (CAS 857872-74-3)
- D-γ-Glu20-Side-Tirzepatide (CAS CATO-CPTD788929)
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