Xylene, 1ml Back Catalog number: 679780 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 0220.20-200-T Perylene, 200µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 198-55-0 Price on request 678089 EPN, 100 µg/ml, Acetonitrile, 1ml Price on request 3738.12-100-IO 2,2',4,4'-Tetrachlorobiphenyl, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 2437-79-8 Price on request