EPA Method 8021B Internal Standard

4-Chloro-2-methylphenoxy-d3-acetic Acid, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 352431-14-2

Mefenpyr-diethyl, 100 µg/ml, Acetonitrile, 5ml

Methoprene,100 µg/mL,MeOH,1mL,