1H-Indene-1,3(2H)-dione, 2-hydroxy-2-(6-hydroxy-1,3-benzodioxol-5-yl)- 2-Hydroxy-2-(6-hydroxy-1,3-benzodioxol-5-yl)-1H-indene-1,3(2H)-dione 75840-20-9 BRN 5606230