103602-80-8 3H-Benzo(6,7)cyclohepta(1,2-c)pyridazin-3-one, 2,4,4a,5,6,7-hexahydro-9-amino-, (+-)- BBR-1513 BRN 6516027 dl-9-Amino-2,4,4a,5,6,7-hexahydro-3H-benzo(6,7)cyclohepten(1,2-c)pyridazin-3-one