EPA Method 645 Analytes Back Catalog number: 40059 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended DD-124-S 1,2,4-Trichlorodibenzo-p-dioxin, 1.2ml x 50ug/ml, nonane Price on request 673684 Prothiofos, 100 µg/ml, Ethyl acetate, 5ml Price on request 72250 Sodium benzoate Price on request