Sulfamethazine-d4, 1mg

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

2,3,3',4,4',5,6-Heptachlorobiphenyl , 100 µg/mL, Solvent-Isooctane, Unit 1mL, # of units-1, Cas.no. 74472-50-7

4-tert-Octylphenol diethoxylate,1000 µg/mL,MeOH,1mL,