1-07-00-00352 (Beilstein Handbook Reference) 2,5-Cyclohexadiene-1,4-diimine, N,N'-dichloro-2-methyl- 3029-60-5 BRN 2442554 N,N'-Dichloro-2-methyl-2,5-cyclohexadiene-1,4-diimine NSC 344490