Group I Elements Starter Kit Back Catalog number: 52253 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 48021 Pentafluorobenzene Price on request 0978.10-K-IOX10 Naphthalene-d8, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-10, Cas.no. 1146-65-2 Price on request 73178 Maleic acid Price on request