Biphenyl, 100 µg/ml, Cyclohexane, 5ml Back Catalog number: 674050 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 0745.12-K-IO 5-Ethyltetraline, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 42775-75-7 Price on request 59462 Sulfate (SO42-) Price on request 679447 Heptachlor, 100 µg/ml, Methanol, 1ml Price on request