1089-91-4 18462-96-9 1H-Pyrrolo(1,2-a)indole-5,8-dione, 2,3-dihydro-2-amino-1,7-dihydroxy-9-(hydroxymethyl)-6-methyl- 2,3-Dihydro-2-amino-1,7-dihydroxy-9-(hydroxymethyl)-6-methyl-1H-pyrrolo(1,2-a)indole-5,8-dione