Isoxaben, 100 µg/ml, Acetonitrile, 5ml

EPA Method 607 - Nitrosamines

1,4,6,7-Tetramethylnaphthalene, 500µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 13764-18-6

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