Versicolorin B is an organic heteropentacyclic compound that is 2,3,3a,12a-tetrahydroanthra[2,3-b]furo[3,2-d]furan-5,10-dione carrying three hydroxy substituents at positions 4, 6 and 8. It has a role as an Aspergillus metabolite. It is a member of p-quinones, a polyphenol, an organic heteropentacyclic compound and a cyclic acetal. It is a conjugate acid of a versicolorin B(1-).