Isobutene Back Catalog number: 72431 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 94090 Oxygenates Price on request 9874.16-50-IO 2,3-Dimethylphenanthrene , 50µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 3674-65-5 Price on request MET-11755A-25MG Dimethenamid ESA sodium salt, 25mg Price on request