2,2':6',2''-Terpyridine, 6,6'''-(1,7-heptanediyl)bis- 5-26-19-00418 (Beilstein Handbook Reference) 57154-77-5 6,6'''-(1,7-Heptanediyl)bis-2,2':6',2''-terpyridine BRN 1196963