2,4',5-Trichloro[13C12]biphenyl, 1.2ml x 50ug/ml, nonane

Quercetin 3-O-ß-D Glucoside, 50mg

d2 C27 alpha alpha alpha (20R)-Cholestane, 100µg/mL in Isooctane, 10 x 1ml

Parathion-methyl, 100 µg/ml, Toluene, 1ml