cis-2-Butene Back Catalog number: 72428 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 90767 Cyclohexane Price on request BFR-CS1,2,3,4,5 Individual Calibration Solutions , 200ul, toluene Price on request 673559 alpha-Endosulfan, 10.0 µg/ml, Ethyl acetate, 10m Price on request