Synonyme
American cyanamid 12,503; CL 12503; ENT 23,968; Ofnack; Ofnak; Ofunack; Pyridafenthion; Pyridaphenthion; Phosphorothioic acid, O-(1,6-dihydro-6-oxo-1-phenyl-3-pyridazinyl) O,O-diethyl ester; Phosphorothioic acid, O,O-diethyl ester, O-ester with 6-hydroxy-2-phenyl-3(2H)pyridazinone; O,O-Diethyl O-(2,3-dihydro-3-oxo-2-phenyl-6-pyridazinyl)phosphorothioate; O,O-Diethylphosphorothioate, O-ester with 6-hydroxy-2-phenyl-3(2H)-pyridazinone; O-(1,6-Dihydro-6-oxo-1-phenylpyridazin-3-yl) O,O-diethyl phosphorothioate; 3(2H)-Pyridazinone, 6-hydroxy-2-phenyl-, O-ester with O,O-diethyl phosphorothioate; O,O-diethyl O-(1,6-dihydro-6-oxo-1-phenylpyridazin-3-yl) thiophosphate
