Tolylfluanid is an organic chemical compound that is used as an active ingredient in fungicides and wood preservatives.

The synthesis of tolylfluanid begins with the reaction of dimethylamine and sulfuryl chloride.

[1] Tolylfluanid is used on fruit and ornamental plants against gray mold (Botrytis), against late blight on tomatoes and against powdery mildew on cucumbers.

In aerobic media (pH = 7.7-8.0), tolylfluanid hydrolytically and microbially decomposes to N,N-dimethyl-N-(4-methylphenyl) sulfamide (DMST) and dimethylsulfamide.

The highest concentrations are found in the blood, lungs, liver, kidneys, spleen and thyroid gland.