A compound of the formula R.sup.1 --NHC(O)NHSC(S)NR.sup.2 R.sup.3 wherein R.sup.1 is phenyl; phenyl substituted with halogen, alkyl, NR.sup.4 R.sup.5 wherein R.sup.4 and R.sup.5 are the same or different and are hydrogen or alkyl; alkoxy, alkylthio, methylenedioxy, COOR.sup.6 wherein R.sup.6 is alkyl; or NHCOOR wherein R.sup.7 is alkyl; R.sup.2 and R.sup.3 are the same or different and are alkyl, cycloalkyl or aralkyl, and R.sup.2 plus R.sup.3 are alkylene, oxydialkylene or thiodialkylene.
化合物的
化学式为R.sup.1 --NHC(O)NHSC(S)NR.sup.2 R.sup.3,其中R.sup.1是苯基;苯基上取代有卤素、烷基、NR.sup.4 R.sup.5(其中R.sup.4和R.sup.5相同或不同,是氢或烷基)、烷氧基、烷
硫基、亚甲二氧基、COOR.sup.6(其中R.sup.6是烷基)或NHCOOR(其中R.sup.7是烷基);R.sup.2和R.sup.3相同或不同,是烷基、环烷基或芳基烷基,且R.sup.2加上R.sup.3是烷基、氧二烷基或
硫二烷基。