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 10900.17-K-ME Promethazine hydrochloride,1000 µg base/mL,MeOH,1mL Price on request 95450 PCB Congeners & Hexachlorobenzene Mix #1 Price on request 675778 Nuarimol, 100 µg/ml, Ethyl acetate, 5ml Price on request