Bis(2-(1,6,7,8-tetrahydro-2H-indeno[5,4-b]furan-8-yl)ethyl)amine; 1,6,7,8-Tetrahydro-N-[2-(1,6,7,8-tetrahydro-2H-indeno[5,4-b]furan-8-yl)ethyl]-2H-indeno[5,4-b]furan-8-ethanamine; 2H-Indeno[5,4-b]furan-8-ethanamine, 1,6,7,8-tetrahydro-N-[2-(1,6,7,8-tetrahydro-2H-indeno[5,4-b]furan-8-yl)ethyl]-