PCN Potentially Toxic Congeners Solution/Mixture, 1.2ml, nonane Back Catalog number: PCN-TOX Availability: In the manufacturer's stock Price on request - + Recommended 81806 EPA Method 504 Price on request TCC N-(4-chlorophenyl)-N'-(3,4-dichlorophenyl)urea , 1.2ml x 50ug/ml, methanol Price on request 0762.16-500-IO 1,6-Dimethylphenanthrene, 500µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 20291-74-1 Price on request