Biphenyl, 10.0 µg/ml, Cyclohexane, 10ml Back Catalog number: 674051 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 1706.9-K-AN DL-N-Nitrosonornicotine-d4, 1000µg/mL, Solvent-acetonitrile, Unit 1mL, # of units-1, Cas.no. 66148-19-4 Price on request 675434 Tetradifon, 250mg Price on request 93013 PAH standard, 100µg/ml in methylene chloride, 1ml Price on request