Synonyms: Pyrazolo[1,5-a]pyrimidine-6-carboxylicacid, 2-hydroxy-5-methyl-, ethyl ester, O-ester with O,O-diethylphosphorothioate (8CI);2-(O,O-Diethylthionophosphoryl)-5-methyl-6-carbethoxypyrazolopyrimidine;Afugan; Afugan WP 30; Curamil; Diethyl6-carbethoxy-5-methylpyrazolo[1,5-a]pyrimidin-2-yl phosphorothioate; HOE 2873;Hoechst 2873; Missile; NSC 232671; Pyrazophos