PCB No. 104, 100µg/ml in Isooctane, 1ml

18ß(H)-Olean-12-en-3-one, neat, Solvent-neat, Unit 2mg, # of units-1, Cas.no. 638-97-1

8-Bromo-2,3-dichloro[13C12]dibenzofuran, 1.2ml x 50ug/ml, toluene

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