Ethyl 5-chloro-1,2,4-oxadiazole-3-carboxylate CAS 1393552-64-1

Purity 97%+In StockPharmaceutical Standards
CAS No.1393552-64-1
Molecular FormulaC5H5ClN2O3
Molecular Weight176.56 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Ethyl 5-chloro-1,2,4-oxadiazole-3-carboxylate CAS 1393552-64-1 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 176.56 g/mol gives Ethyl 5-chloro-1,2,4-oxadiazole-3-carboxylate distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies Ethyl 5-chloro-1,2,4-oxadiazole-3-carboxylate (CAS 1393552-64-1), a certified reference material (molecular formula C5H5ClN2O3, MW 176.56 g/mol) for analytical method development and quality control.

Based on its molecular formula C5H5ClN2O3, Ethyl 5-chloro-1,2,4-oxadiazole-3-carboxylate contains an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 176.56 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).

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.

CATO manufactures Ethyl 5-chloro-1,2,4-oxadiazole-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 FormulaC5H5ClN2O3
Molecular Weight176.56 g/mol
AppearanceOff-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor)
Purity97%+
StorageStore 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
StabilityMay 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 AbsorptionUV-absorbing
CAS Registry Year (est.)1991
Halogen ContentCl-containing
Nitrogen Atoms2

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