Atrazine, 100 µg/ml, Ethyl acetate, 5ml

Diisopropylnaphthalene (mixture of isomers), certified, 0.1g

3-n-Heptylthiophene, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 65016-61-7

d2 C27 ??? (20R)-Cholestane,neat,neat,25mg