18313-91-2 AI3-25826 BAY 45556 BRN 2058685 Bayer 45556 ENT 25,826 O-Ethyl O-(3-methyl-4-nitrophenyl)ethylphosphonothioate Phosphonothioic acid, ethyl-, O-ethyl O-(3-methyl-4-nitrophenyl) ester Phosphonothioic acid, ethyl-, O-ethyl O-(4-nitro-m-tolyl) ester