Campesterol, 100µg/mL, Solvent-hexane, Unit 1mL, # of units-5, Cas.no. 474-62-4

2,2',3,4,4',5,6'-Heptachlorobiphenyl ,100 µg/mL,isooctane,1mL,

Cyclopenta[cd]pyrene, 50µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 27208-37-3

N,N-Dimethylaniline, 250mg