Potassium (K) Back Catalog number: 54158 Manufacturer: ABSOLUTE STANDARDS Availability: 3 weeks Price on request - + Recommended 71525 Pentamethylbenzene Price on request 2160.12-50-T 2'-Fluoro-2,4,4'-tribromodiphenyl ether, 50µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 876310-22-4 Price on request 79573 1-Methylnaphthalene-d10 Price on request