EPA Method 550 Analytes Back Catalog number: 30051 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2077.6-1.6K-PXY 2,3,4-Trichlorophenol, 1600µg/mL, Solvent-p-xylene, Unit 1mL, # of units-1, Cas.no. 15950-66-0 Price on request 2189.4-50-ME Perfluorobutyric acid, sodium salt, 50µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 2218-54-4 Price on request 33971 tert-Amyl methyl ether Price on request