69813-94-1 3,4,4,9-Tetrakis(acetyloxy)-1a,9b-dihydro-7-methoxy-7-methylspiro[naphtho[2,3-b]furan-2(3H),2(5H)-oxireno[d]benzo[1,2-b:5,4-c]dipyran]-5,5,8-trione 921202-17-7 1,2,5,6-Anthracenetetrol, 1,2,5,6-tetrahydro-, (1R,2S,5R,6S)- 921202-28-0 2-Oxabicyclo[2.2.1]heptane-1-carboxylic acid, 4,7,7-trimethyl-2-oxo-,1,1'-[(1S,2R)-1,2,3,4-tetrahydro-1,2-phenanthrenediyl] ester,(1S,1'S,4R,4'R)-