WS PAH Calibration Level 4

2,3,3',4',5,5'-Hexachloro-4-methoxybiphenyl, 1.2ml x 50ug/ml, nonane

17 alpha(H)-30-Diahopane, neat, Solvent-neat, Unit ca. 5µg, # of units-1, Cas.no.

Phthalate Esters Mix, 500ug/ml in Acetone, 1ml