2,2':6',2''-Terpyridine, 4'-(4-Methylphenyl)- 4'-(4-Methylphenyl)-2,2'-6',2''-terpyridine 4'-(4-Methylphenyl)-2,2':6',2''-terpyridine 4'-(4-Tolyl)-2,2':6',2''-terpyridine 4'-(p-Tolyl)-2,2':6',2''-terpyridine 89972-77-0 SS-701