Potassium (K) Back Catalog number: 54558 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2778.10-100 Heptachlor-exo-epoxide (cis-), 100µg/mL, Solvent-c.hexane or ac.nitrile, Unit 1mL, # of units-1, Cas.no. 28044-83-9 Price on request 52253 Group I Elements Starter Kit Price on request 12013.20-10MG Bis(4-methyl-1-pentyl) phthalate,neat,neat,10mg, Price on request