2-Imino substituted isothioureidobenzene products useful as anthelmintics and fungicides are disclosed. The products may be prepared by several different methods including treating a 2-iminothioureidobenzene with a base and either an organic halide, a diester of sulfuric acid or a diester of sulfurous acid or treating a 2-aminoisothioureidobenzene with an appropriately substituted aldehyde.