4H-Cyclopenta[def]phenanthren-4-one,1000 µg/mL,toluene,1mL,

EPA Method 8240A Calibration Check Compounds

2,3,3',4-Tetrahlorobiphenyl, 100 µg/mL, Solvent-Isooctane, Unit 1mL, # of units-1, Cas.no. 74338-24-2

MCPA,1000 µg/mL,MeOH,1mL,