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Benclothiaz is an obsolete nematicide which is not approved for use in most of the developed world. There are considerable data gaps regarding its environmental fate and its toxicity to man and animals.

Benclothiaz was commercially synthesised through a multi-step chemical process involving chlorinated benzaldehyde derivatives. One common route started with 2,3-dichlorobenzylaldehyde, which undergoes a reaction with sulphur sources such as ammonium sulphate at elevated temperatures for several hours. Alternative methods use chlorinated benzaldehyde oximes or phenylmethylthio-substituted benzaldehydes in the presence of reagents like hydroxylamine-O-sulfonic acid, with solvents including hexane, dichloromethane, and ethyl acetate.

Disrupts insect's lipid biosynthesis needed for growth, development and reproduction

Insecticide; Nematicide