Ethyl (2Z)-2-chloro-2-[2-(2-methylphenyl)hydrazin-1-ylidene]acetate CAS 64989-46-4

Description

Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Ethyl (2Z)-2-chloro-2-[2-(2-methylphenyl)hydrazin-1-ylidene]acetate.

Ethyl (2Z)-2-chloro-2-[2-(2-methylphenyl)hydrazin-1-ylidene]acetate (CAS 64989-46-4), molecular formula C11H13ClN2O2 and molecular weight 240.69 g/mol, is a CATO reference standard with documented purity and traceability.

Ethyl (2Z)-2-chloro-2-[2-(2-methylphenyl)hydrazin-1-ylidene]acetate (C11H13ClN2O2) 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, 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.

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.

The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.

Physical & Chemical Properties

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