33857-23-7 AMIPROPHOS BAY-NTN 5006 BRN 2157231 NTN 5006 O-Ethyl-O-(2-nitro-p-tolyl)-N-isopropylphosphoramidothionate Phosphoramidothioic acid, (1-methylethyl)-, O-ethyl O-(4-methyl-2-nitrophenyl) ester (9CI) Phosphoramidothioic acid, isopropyl-, O-ethyl O-(2-nitro-p-tolyl) ester