parathionDNTPO,O-Diethyl O-p-nitrophenyl phosphorothioateO,O-diethyl O-(4-nitrophenyl) thiophosphateO,O-diethyl O-(p-nitrophenyl) thiophosphateParathionThiophosdiethyl p-nitrophenyl thiophosphatediethyl parathionethyl parathionphosphorothioic acid, O,O-diethyl O-(4-nitrophenyl) ester