3 1 6 1 8 9 July 8, 2019 16 32 64 128 3 1 6 2 8 9 Titus 3 4 6 1 john 1 8 9 1 9 diphenyl 1 3 6 8 nonatetraen 5 one 1 9-diphenyl nona-1 3 6 8-tetraen-5-one
