2,3,6,7-Anthracenetetrol, 9,10-dihydro-9,9,10,10-tetramethyl- 2,3,6,7-Tetrahydroxy-9,9,10,10-tetramethyl-9, 10-dihydroanthracene 68527-81-1 9,10-Dihydro-9,9,10,10-tetramethylanthracene-2,3,6,7-tetrol EINECS 271-286-4