75084-22-9 8-(4-Nitrobenzoyloxy)-9-hydroxy-8,9-dihydro-aflatoxin B1 Cyclopenta(c)furo(3',2':4,5)furo(2,3-h)(1)benzopyran-1,11-dione, 2,3,6a,8,9,9a-hexahydro-8,9-dihydroxy-4-methoxy-, 8-p-nitrobenzoate