7 2 3 9 10 July 8, 2019 16 32 64 128 2 3 6 7 tetramethoxy 9 10 dimethylanthracene 2 3 6 7-tetramethyl anthracene-9(10h)-one 14 2 7 3 9 equals 10 2 7 or 3 9 for 10 22 2 3 6 7 tetrahydroxy 9 10 anthraquinone 7 9 x 2 x 3 10 1 2 3 4 6 7 اي 9 10 2 7 10 x 3 8 9 2 10b 3 )+ 9 22b 7
