Naphthalene, 10 µg/ml, Cyclohexane, 10ml Back Catalog number: 677351 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 1931.6-1ML Pentafluoropropionic anhydride, neat, Solvent-neat, Unit 1mL, # of units-1, Cas.no. 356-42-3 Price on request 9429.8-100 Chloroneb, 100µg/mL, Solvent-c.hexane or ac.nitrile, Unit 1mL, # of units-1, Cas.no. 2675-77-6 Price on request 682235 2,2',4,4'-Tetrahydroxybenzophenone, 500mg Price on request