1156-52-1 BAY 56301 BRN 0822870 Bayer 56301 Phenylphosphonothioic acid O-ethyl O-(2-(fluoromethyl)-6-methyl-4-pyrimidinyl) ester Phosphonothioic acid, phenyl-, O-ethyl O-(2-(fluoromethyl)-6-methyl-4-pyrimidinyl) ester