3729281 -OEChem-02060822572D 0 0 0 0 0 0 0 0 0999 V2000 M END > 3729281 > 2 > ChemIDplus > 004274264 > (1)Benzopyrano(5,4,3-cde)(1)benzopyrano(5,4,3-cde)(1)benzopyran-5,10-dione, 2,3,7,8-tetrakis(acetyloxy)- 2,3,7,8-Tetrakis(acetyloxy)-(1)benzopyrano(5,4,3-cde)(1)benzopyrano(5,4,3-cde)(1)benzopyran-5,10-dione 4274-26-4 > 4274-26-4 > 004274264 > http://chem.sis.nlm.nih.gov/chemidplus/ > http://chem.sis.nlm.nih.gov/chemidplus/direct.jsp?result=advanced®no=004274264 $$$$