Color Back Catalog number: 50818 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 79861 Clopyralid (Lontrel), 1000µg/ml in Acetonitrile, 1ml Price on request X9085 7,12-Dimethylbenz(a)anthracene Price on request RPC-140AS 2,3,3,4,4,5,5,6-Octachlorobiphenyl 37,48 €