(Dihydroxy-2,3 phenyl)-2 hydroxy-2 indanedione-1,3 [French] 1H-Indene-1,3(2H)-dione, 2-(2,3-dihydroxyphenyl)-2-hydroxy- 2-(2,3-Dihydroxyphenyl)-2-hydroxy-1H-indene-1,3(2H)-dione 62917-81-1 BRN 5574341