3,3',4,5'-Tetrachloro[13C12]biphenyl, 1.2ml x 50ug/ml, nonane

Di-p-tolylphenyl phosphate,100 µg/mL,isooctane,1mL,

Methylamine

2,2',3,3',4,4',5-Heptachloro[13C12]biphenyl, 1.2ml x 50ug/ml, nonane