EPA 1638Mix A Back Catalog number: 52144 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended DD-1289-S 1,2,8,9-Tetrachlorodibenzo-p-dioxin, 1.2ml x 50ug/ml, nonane Price on request 677174 Tri-n-propyltin chloride, 1000 µg/ml, Methanol, Price on request 79684 Fipronil Price on request