PyrazophosPyrazophos定菌磷O-6-ethoxycarbonyl-5-methylpyrazolo[1,5-a]pyrimidin-2-yl O,O-diethyl phosphorothioateO,O-Diethyl O-(5-methyl-6-(ethoxycarbonyl)-pyrazolo-(1,5-a)-pyrimid-2-yl)-thionophosphate2-(O,O-Diethylthionophosphoryl)-5-methyl-6-carbethoxy-pyrazolo-(1,5a)pyrimidineEthyl 2-((diethoxyphosphinothioyl)oxy)-5-methylpyrazolo(1,5-a)pyrimidine-6-carboxylatepyrazophos