| 59631-19-5 | O-(5-methoxy-1-methyl-6-oxo-1,6-dihydropyridazin-4-yl) O-methyl O-(2-methylpropyl) thiophosphate | C11H19 N2 O5 P S |
| 59631-22-0 | Thiophosphoric acid O-ethyl O-isopropyl O-(1,6-dihydro-5-methoxy-6-oxo-1-phenylpyridazin-4-yl) ester | C16H21N2O5PS |
| 59631-23-1 | pyridathion | C11H19 N2 O5 P S |