Method 1640Mix A Back Catalog number: 53146 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended DD-123678-S 1,2,3,6,7,8-Hexachlorodibenzo-p-dioxin , 1.2ml x 50ug/ml, nonane Price on request BDE-15 4,4'-Dibromodiphenyl ether, 1.2ml x 50ug/ml, nonane Price on request SC-237106 Thymolphthalexon, 1g Price on request