2-Carbamoyloxyphenyl phosphoro(di)thioate esters of formula (I) are new: R1 = 1-4C alkyl; R2 = H, 1-4C alkyl or 1-4C alkoxy; R3 = H or 1-4C alkyl; X = O or S. 
O-(O-ETHYL-S-ALKYLPHOSPHORYL)-O-(CARBAMOYL)-BRENZKATECHINDERIVATE.