WS Sodium (Na) Back Catalog number: 54149 Manufacturer: ABSOLUTE STANDARDS Availability: 3 weeks Price on request - + Recommended 3958.15-KIT Single 15 EU PAHs, 200µg/mL each in toluene, 200µg/mL, Solvent-toluene, Unit kit, # of units-1, Cas.no. Price on request 72798 Dimethyl fumarate-2,3-d2 Price on request 1024.18-200-TX10 Chrysene-d12, 200µg/mL, Solvent-toluene, Unit 1mL, # of units-10, Cas.no. 1719-03-5 Price on request