Chlorothalonil; CAS NO 1897-45-6; Tetrachloroisophthalonitrile; fungicide for diseases on crops wood preservative.

Chlorothalonil is a broad-spectrum protective fungicide, which can interact with glyceraldehyde triphosphate dehydrogenase in fungal cells and combine with the protein containing cysteine in the enzyme, thus destroying the activity of the enzyme, and thus destroying the metabolism of fungal cells and losing vitality. Chlorothalonil has no internal absorption and conduction effect, but it has good adhesion on the body surface after being sprayed on the plant body and is not easy to be washed away by rain, so the efficacy period is longer.