2,3',4,5'-Tetrachlorobiphenyl,100 µg/mL,isooctane,1mL,

2,7-Dimethylphenanthrene, 500µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 1576-69-8

Trigonelline-d3 (methyl-d3)

Dibenzothiophene, 500µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 132-65-0