Perfluoro-n-[1,2,3,4-13C4]butanoic acid, 1.2ml x 50ug/ml, methanol

Benzo[a]pyrene-d12, 100µg/mL, Solvent-toluene, Unit 1mL, # of units-10, Cas.no. 63466-71-7

Hexaethylene glycol mono(p-n-octylphenyl) ether, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no.

Thiencarbazone-methyl, 10.0 µg/ml, Acetonitrile,