1,1,2,2-CYCLOHEX-4-ENETETRACARBONITRILE, 4,5-DIMETHYL- 1,2-Dimethyl-4,4,5,5-cyclohex-1-enetetracarbonitrile 4,5-Dimethyl-1,1,2,2-cyclohex-4-enetetracarbonitrile 4-09-00-03795 (Beilstein Handbook Reference) 69155-29-9 BRN 2618867