7-Bromo-5-methoxy-2-oxo-3,3a,8,10-tetrahydro-2h-4-oxa-9-azacyclohepta[def]fluorene-9(3a1H)-carbaldehyde 100mg

7-Bromo-5-methoxy-2-oxo-3,3a,8,10-tetrahydro-2h-4-oxa-9-azacyclohepta[def]fluorene-9(3a1H)-carbaldehyde 100mg