Mono-ethyl phthalate (ring-1,2-13C2,99%, dicarboxyl-13C2,99%) 100 µg/mL in MTBE

N,N-Dimethylvaleramide, 250mg

2,3,3',5,5',6-Hexachlorobiphenyl, 100 µg/mL, Solvent-Isooctane, Unit 1mL, # of units-1, Cas.no. 74472-46-1

Dibenz[a,h]anthracene, 10mg