cis-2-Butene Back Catalog number: 72428 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 674866 Trimethylsulfonium iodide, 250mg Price on request 50074 Metals Mix #3 Price on request 3218.18-K-IO 9-trans-Octadecenoic acid, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 112-79-8 Price on request