13067-96-4 BRN 2944106 O-(4-Cyanophenyl) O-methyl phenylphosphonothioate O-(p-Cyanophenyl) O-methyl phenylphosphonothioate Phenylphosphonothioic acid O-(4-cyanophenyl) O-methyl ester Phenylphosphonothioic acid O-(p-cyanophenyl) O-methyl ester Phosphonothioic acid, phenyl-, O-(4-cyanophenyl) O-methyl ester Phosphonothioic acid, phenyl-, O-methyl ester, O-ester with p-hydroxybenzonitrile