2,4-Cyclopentadiene-.DELTA.1,.alpha.-methanediamine, N,N,N',N'-tetramethyl- 6,6-Bis(dimethylamino)fulvene 703-24-2 Fulvene, 6,6-bis(dimethylamino)- Methanediamine, 1-(2,4-cyclopentadien-1-ylidene)-N,N,N',N'-tetramethyl- NSC137882