62874-94-6 BRN 0964185 Benzo(1,2-b:4,3-b')dipyrrole-2-carboxylic acid, 3,6,7,8-tetrahydro-6-acetyl-5-hydroxy-4-methoxy- Benzo(1,2-b:4,3-b')dipyrrole-2-carboxylic acid, 6-acetyl-3,6,7,8-tetrahydro-5-hydroxy-4-methoxy- G 6 G 6 (pharmaceutical) PDE II