EPA 1638Mix A

Chlorotoluron, 100µg/mL, Solvent-c.hexane or ac.nitrile, Unit 1mL, # of units-1, Cas.no. 15545-48-9

4,4'-Dimethylbiphenyl, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 613-33-2

Zearalanone (Certified Reference Material),10.02 µg/mL,acetonitrile,2mL,