Ethyl chloro[(4-methoxyphenyl)hydrazono]acetate CAS No. 27143-07-03

About Ethyl chloro[(4-methoxyphenyl)hydrazono]acetate CAS No. 27143-07-03

Ethyl chloro[(4-methoxyphenyl)hydrazono]acetate (also known as Ethyl chloro-(4-methoxyphenylhydrazono)acetate or Ethyl 2-chloro-2-(4-methoxyphenylhydrazono)acetate) is an aromatic hydrazone derivative used mainly as an intermediate in organic synthesis. It is typically obtained as a yellow to orange crystalline compound and contains functional groups such as an ester, chloro substituent, and hydrazone linkage that make it reactive for further chemical transformations. Because of these properties, the compound is widely used as a key building block in the synthesis of heterocyclic compounds and pharmaceutical intermediates. In laboratory and industrial chemical processes, Ethyl chloro[(4-methoxyphenyl)hydrazono]acetate is particularly important in the preparation of active pharmaceutical ingredients, specialty chemicals, and advanced organic materials where selective functional group reactions are required.