Agilent Organophosphorus Pesticides Standard in Hexane/acetone (1:1), 1mLConcentration Aspon, 200 µg/mL, CAS #: 3244-90-4Chlorpyriphos-methyl, 200 µg/mL, CAS #: 5598-13-0Crotoxyphos, 200 µg/mL, CAS #: 7700-17-6Dichlofenthion, 200 µg/mL, CAS #: 97-17-6Dicrotophos, 200 µg/mL, CAS #: 141-66-2Fenitrothi..