3077-57-4 BRN 2707793 Benzenesulfonamide, N,N-dimethyl-p-hydroxy-, O-ester with O-ethyl dimethylphosphoranidate O-(p-Dimethylsulfamoyl)phenyl O-ethyl dimethylphosphoramidate Phosphoramidic acid, dimethyl-, O-ethyl ester, O-ester with N,N-dimethyl-p-hydroxybenzene sulfonamide