4,4'-DDT (ring-13C12,99%) 100 µg/mL in Nonane, 1,2ml

Dimethyl pseudomorphine, neat, Solvent-neat, Unit 250mg, # of units-1, Cas.no. 121395-47-9

CONOSTAN Standard S-21, 100 ppm, 100g

Common Anions EPA 300A Mix