1,2-Dichlorobenzene-d4

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

PCB No. 1, 100µg/ml in Isooctane, 1ml

Bisphenol S (13C12, 98%), 100µg/mL in MeOH, 1,2ml