PCB No. 189, 10µg/ml in Isooctane, 10ml

Lamotrigine-13C3,d3, Major, 1000µg/ml in MeOH, 1ml

2,3,6,7-Tetrachloro(13C10)naphthalene, 1.2mL x 50ug/mL, nonane

Bifenox