英文别名
1,4-di-fluoren-9-ylidene-but-2t-ene;1,4-Di-fluoren-9-yliden-but-2t-en;1.4-Di-(fluorenyliden-(9))-buten-(2t);trans-1,1;6,6-Bis-biphenylen-hexatrien-(1,3,5), trans-1,4-Di-(fluorenyliden-(9))-buten-(2);trans-1.1,6.6-Bis--hexatrien-(1.3.5);trans-1,6-Bis-diphenylen-hexatrien-(1,3,5);9-[(E)-4-fluoren-9-ylidenebut-2-enylidene]fluorene