Zinc bis(dimethyldithiocarbamate)

It was used to address scab on apples and pears, leaf curl in peaches, and anthracnose and blight in tomatoes.

The top five crops ziram is used on are: almonds, peaches, nectarines, pears, and table and raisin grapes.

The compound is a prototypical zinc dithiocarbamate, a broad class of coordination complexes with the formulae Zn(R2NCS2)2, where R can be varied.

Such compounds are produced by treating zinc and dithiocarbamate (R2NCS2−), as illustrated with dimethyldithiocarbamate:[4] Annually, approximately 1.9 million pounds of the active ziram ingredient are used.

Mono-zinc derivatives are obtained by adding strong ligands (L) such as amines, which give adducts Zn(S2CNR2)2L.

Chemical structure of Ziram
Chemical structure of Ziram
Structure of the ethyl-methyl carbamate derivative [Zn(S 2 CNEtMe) 2 ] 2 . [ 6 ]