Isobutene Back Catalog number: 72431 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 681451 Chlordimeform, 10.0 µg/ml, Ethyl acetate, 10ml Price on request 3625.34-25-AN U{13C34}-Fumonisin B1, 25µg/mL, Solvent-acetonitrile, Unit 1.2mL, # of units-1, Cas.no. Price on request 51166 VPH Primary Calibration Spike Rev 1.1 Price on request