Ethyl 3-(3,4-dichlorophenyl)-[1,2,4]oxadiazole-5-carboxylate CAS 1053656-34-0
| CAS No. | 1053656-34-0 |
| Molecular Formula | C11H8Cl2N2O3 |
| Molecular Weight | 287.10 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Ethyl 3-(3,4-dichlorophenyl)-[1,2,4]oxadiazole-5-carboxylate (C11H8Cl2N2O3) 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 aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
CATO supplies Ethyl 3-(3,4-dichlorophenyl)-[1,2,4]oxadiazole-5-carboxylate (CAS 1053656-34-0), a certified reference material (molecular formula C11H8Cl2N2O3, MW 287.10 g/mol) for analytical method development and quality control.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
As a certified reference material (CRM), Ethyl 3-(3,4-dichlorophenyl)-[1,2,4]oxadiazole-5-carboxylate meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C11H8Cl2N2O3 |
| Molecular Weight | 287.10 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, keep tightly closed to prevent evaporation |
| 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; 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.) | 1988 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Ethyl Standards
- 2-[1-(2,4-dichlorophenyl)-5-oxo-4,5-dihydro-1H-pyrazol-3-yl]acetic acid (CAS 1094361-21-3)
- Ethyl 5-(3,4-dichlorophenyl)-[1,2,4]oxadiazole-3-carboxylate (CAS 163719-79-7)
- 1-(2,4-Dichlorophenyl)-N-methyl-4-nitro-1H-pyrazol-5-amine (CAS 318238-13-0)
- 1-(3,4-Dichlorophenyl)-1,4,5,6-tetrahydro-6-oxo-3-pyridazinecarboxylic acid (CAS 926254-12-8)
- 3-(3-(2,4-Dichlorophenyl)-1,2,4-oxadiazol-5-yl)propanoic acid (CAS 30149-95-2)
- 6-(2,4-Dichlorophenyl)-2-oxo-1,2,3,6-tetrahydro-4-pyrimidinecarboxylic acid (CAS 439095-06-4)
- Ethyl 5-(3,4-dichlorophenyl)-1,3,4-oxadiazole-2-carboxylate (CAS 68496-92-4)
- (3,4-Dichlorophenyl)(2,4-difluorophenyl)methanone (CAS 1096909-62-4)
Recommended Standards
- 4-Chloro-1-((4-chlorophenoxy)methyl)-1H-pyrazole-3-carboxylic acid (CAS 1006488-87-4)
- 7-Iodo-3-isopropyl-[1,2,4]triazolo[4,3-a]pyridine (CAS 1057393-48-2)
- 1-((2,5-Dichlorophenoxy)methyl)-1h-pyrazole-3-carboxylic acid (CAS 1006474-43-6)
- 3-Iodo-5-methoxy-1-methyl-1h-indole (CAS 1005349-15-4)
- 2-Bromo-1-(1-methyl-1H-pyrrol-3-yl)ethanone (CAS 220270-63-3)
- 4-Benzylpiperidin-4-amine (CAS 885653-42-9)
- 2-(tert-Butoxy)-3-fluorophenol (CAS 1243326-59-1)
- 5-(4-((5-Cyclopropyl-1H-pyrazol-3-yl)amino)-5-ethynylpyrimidin-2-yl)thiophene-2-sulfonamide (CAS 1266477-79-5)
- 5-(piperazin-1-ylmethyl)-3-(thiophen-2-yl)-1,2,4-oxadiazole hydrochloride (CAS 1803597-91-2)
- 2-Chloro-5-cyclopropoxynicotinic acid (CAS 1243409-31-5)
- 6-Bromooxazolo[4,5-b]pyridin-2-amine (CAS 1783621-07-7)
- 4-Cyano-2-ethyl-6-iodobenzene-1-sulfonyl chloride (CAS 1807194-31-5)
- 5-Methoxybenzo[c][1,2]oxaborol-1(3H)-ol (CAS 174671-92-2)
- Semaglutide impurity 103 (CAS 1446013-07-5)
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