PCB No. 31, certified, 25mg

2,6-Dichlorobenzamide, 500mg

2,2',3,4,4',5',6-Heptabromodiphenyl ether, 50µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 207122-16-5

L-Nicotine,1000 µg/mL,MeOH,1mL