Biphenyl, 100 µg/ml, Cyclohexane, 1ml Back Catalog number: 680678 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended DF-1247-S 1,2,4,7-Tetrachlorodibenzofuran, 1.2ml x 50ug/ml, nonane Price on request 674489 Permethrin, 10.0 µg/ml, Acetonitrile, 10ml Price on request HCPN Hexachloro(phenyl)norbornene, 1.2ml x 50ug/ml, toluene Price on request