Napropamide, 100 µg/ml, Acetonitrile, 5ml

alpha alpha alpha (20R,23R,24R)-4 alpha,23,24-Trimethylcholestane, neat, Solvent-neat, Unit ca. 5µg, # of units-1, Cas.no. 146276-37-1

1,2,3,4-Tetrachlorobenzene, 1000µg/ml in MeOH, 1ml

D5-PCB 116, 100 µg/ml, Isooctane, 1ml