Ethyl 2-(2-benzylidenehydrazineyl)-4,5-dimethylthiophene-3-carboxylate CAS 71053-42-4

Purity 97%+In StockPharmaceutical Standards
CAS No.71053-42-4
Molecular FormulaC16H18N2O2S
Molecular Weight302.39 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Ethyl 2-(2-benzylidenehydrazineyl)-4,5-dimethylthiophene-3-carboxylate CAS 71053-42-4 chemical structure

Description

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.

Ethyl 2-(2-benzylidenehydrazineyl)-4,5-dimethylthiophene-3-carboxylate (CAS 71053-42-4), molecular formula C16H18N2O2S and molecular weight 302.39 g/mol, is a CATO reference standard with documented purity and traceability.

Ethyl 2-(2-benzylidenehydrazineyl)-4,5-dimethylthiophene-3-carboxylate (C16H18N2O2S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. It is notably hygroscopic, its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.

CATO manufactures Ethyl 2-(2-benzylidenehydrazineyl)-4,5-dimethylthiophene-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 FormulaC16H18N2O2S
Molecular Weight302.39 g/mol
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)9.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1977
Nitrogen Atoms2
Sulfur Atoms1

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