2,4’-DDT, 1000µg/ml in Hexane, 1ml

d4 C27 alpha alpha alpha (20R)-Cholestane, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-10, Cas.no. 205529-74-4

2,2',3,4,5-Pentachloro[13C12]diphenyl ether, 1.2ml x 50ug/ml, nonane

D8-Naphthalene, 10.0 µg/ml, Cyclohexane, 10ml