EPA Method 645 Analytes Back Catalog number: 40059 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 676687 Feruloylputrescine, 10mg Price on request 72054 1,2,4-Trichlorobenzene-d3 Price on request 679892 o-Toluidine, 100 µg/ml, Acetonitrile, 1ml Price on request