Ethyl 3-(4-methoxyphenyl)-1,2,4-oxadiazole-5-carboxylate CAS 40019-25-8

Purity 97%+In StockPharmaceutical Standards
CAS No.40019-25-8
Molecular FormulaC12H12N2O4
Molecular Weight248.23 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Ethyl 3-(4-methoxyphenyl)-1,2,4-oxadiazole-5-carboxylate CAS 40019-25-8 chemical structure

Description

Ethyl 3-(4-methoxyphenyl)-1,2,4-oxadiazole-5-carboxylate (CAS 40019-25-8), molecular formula C12H12N2O4 and molecular weight 248.23 g/mol, is a CATO reference standard with documented purity and traceability.

Ethyl 3-(4-methoxyphenyl)-1,2,4-oxadiazole-5-carboxylate (C12H12N2O4) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, 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).

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 3-(4-methoxyphenyl)-1,2,4-oxadiazole-5-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 FormulaC12H12N2O4
Molecular Weight248.23 g/mol
AppearancePale yellow to yellow crystalline powder
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)8.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1968
Nitrogen Atoms2

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