Heptachlor endo-epoxide, 100 µg/ml, Methanol, 1m

Peropyrene, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 188-96-5

EPA Method 525 - PCB Standard

Diethylene glycol mono(4-n-nonylphenyl) ether-13C6, 10µg/ml, Solvent-Isooctane, Unit 1mL, # of units-1, Cas.no. 1346602-11-6