2667-49-4 4-06-00-00938 (Beilstein Handbook Reference) AI3-25635 BAY 30911 BRN 2277883 Bayer 30911 Caswell No. 323A ENT 25,635 O-(2,4-Dichlorophenyl) O-2,4-Dichlorophenyl O-methyl methylphosphonothioate O-Methyl methylphosphonothioate Phosphonothioic acid, methyl-, O-(2,4-dichlorophenyl) O-methyl ester