16049-49-3 25122-80-9 Anthra(2,3-b)furo(3,2-d)furan-5,10-dione, 2,3,3a,12a-tetrahydro-4,6,8-trihydroxy-, (3aR,12aS)-rel- Anthra(2,3-b)furo(3,2-d)furan-5,10-dione, 2,3,3a,12a-tetrahydro-4,6,8-trihydroxy-, cis-(+-)- Versicolorin B Versicolorin C