5598-52-7 AI3-27521 BRN 1541077 Caswell No. 465CC Chlorpyrifos-methyl oxon DOWCO 217 Dimethyl 3,5,6-trichloro-2-pyridyl phosphate Dimethyl-(3,5,6-trichloro-2-pyridyl) phosphate Dimethyl-3,5,6-trichlor-2-pyridylfosfat [Czech] ENT 27521 EPA Pesticide Chemical Code 103501 Fospirat Fospirate Fospirate [ANSI] Fospirate [USAN:INN] Fospirate methyl Fospirato [INN-Spanish] Fospiratum [INN-Latin] NSC 195058 O,O-Dimethyl O-(3,5,6-trichloro-2-pyridyl) phosphate OMS 1168 Phosphoric acid, dimethyl 3,5,6-trichloro-2-pyridinyl ester Phosphoric acid, dimethyl 3,5,6-trichloro-2-pyridyl ester Torelle