17ß(H),21ß(H)-Hopane, 100µg/min Isooctane, 1ml

L-PFOSK with branched isomers, 50µg/ml in MeOH, 1,2ml

Chlorpyrifos, 100µg/mL, Solvent-hexane, Unit 1mL, # of units-1, Cas.no. 2921-88-2

Terephthalic acid bis(2-ethylhexyl) ester, 250mg