EPA Method 548.1 Analyte Back Catalog number: 30177 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 679660 2,3,4,6-Tetrachlorophenol, 10.0 µg/ml, Cyclohexan Price on request 70913 4-Nitrobiphenyl Price on request C14731500 Malonic acid-dimethyl ester, 250mg Price on request