Tolpyralate, 100 µg/ml, Acetonitrile, 1ml

Ethanol standard in water,0.5g/L,water, 3mL

Imidacloprid,100 µg/mL,MeOH,1mL,

Purified asfalthenes from Venezuelan Oil, neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no.