trans-Permethrin, 1000µg/ml in MeOH, 1ml

EPA Method 8240A - Purgeable Surrogate Standard

Benz[a]anthracene, 500 µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 56-55-3

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