4-Ethyltoluene, 100 µg/ml, Methanol, 1ml

5-Chloro-2-(2,4-dichlorophenoxy)phenol , 1.2ml x 50ug/ml, methanol

2,3,4,7,8-Pentachloro[13C12]dibenzofuran, 1.2ml x 50ug/ml, toluene

n-Tetracontane, ?13C: -27.05, 150ug/ml, Solvent-cyclohexane, Unit 1mL, # of units-10, Cas.no. 4181-95-7