Internal Standards Mix 33, 2000 ng/µl, 1ml

Diethofencarb, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 87130-20-9

Propachlor-ESA sodium salt, 100µg/mL in Acetonitrile, 1ml

Isovaleraldehyde-DNPH