Tungsten (W) Back Catalog number: 56074 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 71745 5-Methyl-2-furfural Price on request 8393.6-K-TF Levoglucosan, 1000µg/mL, Solvent-Tetrahydrofuran, Unit 1mL, # of units-1, Cas.no. 498-07-7 Price on request 66149 2,2',3,4',5',6-Hexachlorobiphenyl (149) Price on request