3 4 7 8 tetramethyl 1 10 phenanthroline sigma July 8, 2019 16 32 64 128 3 4 7 8-tetramethyl-1 10-phenanthroline 1 3 5 7-tetramethyl-2 4 8-trioxa-6-phosphaadamantane Phenanthrene 2 3 5-trimethyl- 1 4 5 8-tetramethylnaphthalene 8 8 9 9-tetramethyl-3 4 5 6 7 8-hexahydro-2h-2 4a-methanonaphthalene
