WS Trace Elements #1 Back Catalog number: 55012 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 9716.12-50-IO 2,2',3,3',4,4',5,5'-Octabromobiphenyl Price on request 673786 Diflufenican, 10 µg/ml, Ethyl acetate, 10ml Price on request 2921.9-100-AC MCPA-d3,100 µg/mL,acetone,1mL, Price on request