WS PAH Calibration Level 4

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

Metoxuron, 100µg/mL, Solvent-c.hexane or ac.nitrile, Unit 1mL, # of units-1, Cas.no. 19937-59-8

1-(2,3-Dichlorophenyl)urea