2,2':6',2''-Terpyridine, 6,6'''-(3-hexene-1,6-diyl)bis- 5-26-19-00419 (Beilstein Handbook Reference) 57154-76-4 6,6'''-(3-Hexene-1,6-diyl)bis-2,2':6',2''-terpyridine BRN 1195108