And the magic number is …︁ 4! A large amount of oligomer‐free 1‐octene (99.9 %) was produced from ethylene by a catalytic system based on chromium during the formation of polyethylene wax [see GC–MS chromatogram; the other three significant peaks are methanol (quenching agent), ethyl acetate (needle‐rinsing agent), and toluene (solvent)].