36417-37-5 9H-FLUORENE-2,7-DICARBOXYLIC ACID, BIS(6-(DIETHYLAMINO)HEXYL) ESTER, DIHYDROCHLO 9H-Fluorene-2,7-dicarboxylic acid, bis(6-(diethylamino)hexyl) ester, dihydrochloride Bis(6-(diethylamino)hexyl) ester of 9H-fluorene-2,7-dicarboxylic acid dihydrochoride