19133-28-9 AI3-25869 CP 40115 ENT 25,869 Monsanto CP-40115 Phosphonothioic acid, ethyl-, O-(2-chloroethyl) O-(4-cyanophenyl) ester Phosphonothioic acid, ethyl-, O-(2-chloroethyl) ester, O-ester with p-hydroxybenzonitrile