Malaoxon (Liromat, Malation oxon, Malthon oxon) is a chemical compound with the formula C10H19O7PS. More specifically, it is a phosphorothioate. It is a breakdown product of, and more toxic than, malathion. == Air & Water == This chemical may be sensitive to prolonged exposure to air. (NTP, 1992). Slightly water soluble. == Fire Hazard == This che...