17702-79-3 AI3-27122 ENT 27,122 Phosphorodithioic acid, S-(4,6-dimethyl-2-pyrimidinyl) O-ethyl O-propyl ester R 5762 S-(4,6-Dimethyl-2-pyrimidinyl) O-ethyl O-propyl phosphorodithioate Stauffer R-5762