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(2007/10/13)2,3,4,5-tetraphenylcyclopentadiene hydrazone
2,3,4,5-tetraphenylcyclopenta-2,4-dienone
1,2,3,4-tetraphenylcyclopentadiene
1,2-Diethyl-4,5,6,7-tetraphenyl-spiro[2.4]hepta-1,4,6-triene
2-Methyl-2-ethyl-4.5.6.7-tetraphenyl-spiro<2.4>heptadien-(4.6)
2'.3'.4'.5'-Tetraphenyl-bicyclo<4.1.0>heptan-7-spiro-1'-cyclopentadien-(2'.4')
2,3,4,5-Tetraphenylspiro<2,4-cyclopentadien-1,3'-<3H-1,2.4>triazolo<4,3-b>indazol>
6'-Methyl-2,3,4,5,7'-pentaphenylspiro<2,4-cyclopentadien-1,3'-<3H>-pyrazolo<5,1-c><1,2,4>triazol>