Isobutene Back Catalog number: 72431 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 0269.24-10MG Naphtho[2,3-b]fluoranthene, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 206-06-4 Price on request KEP Kepone, 1.2mL x 100ug/mL, nonane Price on request L20007700IO PCB No. 77, 10µg/ml in Isooctane, 10ml Price on request