EPA Method 642 - Analytes Back Catalog number: 40057 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2750.11-1ML n-Valerophenone, neat, Solvent-neat, Unit 1mL, # of units-1, Cas.no. 1009-14-9 Price on request 680420 Bis(2-ethylhexyl) maleate, 250mg Price on request 66153 2,2’,4,4’,5,5’-Hexachlorobiphenyl (153) Price on request