EPA Method 633.1 Analytes Back Catalog number: 40049 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 32961 1,4-Dichlorobutane Price on request 72714 2,4,6-Trimethylaniline Price on request 66189 2,3,3',4,4',5,5'-Heptachlorobiphenyl (189) Price on request