delta-HCH, 100 µg/ml, Ethyl acetate, 5ml

d4 C29 alpha alpha alpha (20R)-Ethylcholestane, 10µg/mL in Isooctane, 1ml

Chlozolinate, 100 µg/ml, Cyclohexane, 1ml

2-Ethynyl-3-methylpyrazine,1000 µg/mL,isooctane,1mL,