2,2',3,3',4',5,6-Heptachlorobiphenyl (177)

11H-Benzo[b]fluorene, 200µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 243-17-4

alpha-BHC-13C6,100 µg/mL,n-nonane,1mL,

(13C10)Mirex, 1.2mL x 100ug/mL, nonane