740-20-5 CP-40298 ENT 25,789 Monsanto CP-40298 O-(2-Chloro-2-propenyl) O-(4-nitro-3-(trifluoromethyl)phenyl)methylphosphonothioate Phosphonothioic acid, methyl-, O-2-chloroallyl O-(alpha,alpha,alpha-trifluoro-4-nitro-m-tolyl) ester