168706-30-7 Ethanone,1,1'-(6,6a-dihydro-1,1',7',10',11-pentahydroxy-6a-methylspiro[5H-[1]benzopyrano[4,5-bc][1]benzopyran-5,6'-[6H]dibenzo[b,d]pyran]-2',10-diyl)bis-,(5R-trans)- 85802-38-6 2-(2,4-dihydroxyphenyl)-8-[2-(2,4-dihydroxyphenyl)-5,7-dihydroxy-3-(3-methylbut-2-en-1-yl)-4-oxo-4H-chromen-8-yl]-5-hydroxy-9,9,11-trimethyl-3-(3-methylbut-2-en-1-yl)-8a,9,10,12a-tetrahydro-4H,8H-benzo[c]pyrano[2,3-f]chromen-4-one