(E)-N-(2-(1,2,6,7-tetrahydro-8H-indeno[5,4-b]furan-8-ylidene)ethyl)propionamide; (E)-N-(2-(1,2,6,7-Tetrahydro-8H-indeno[5,4-b]furan-8-ylidene)ethyl)propionamide; Propanamide, N-[(2E)-2-(1,2,6,7-tetrahydro-8H-indeno[5,4-b]furan-8-ylidene)ethyl]; N-[(2E)-2-(1,2,6,7-Tetrahydro-8H-indeno[5,4-b]furan-8-ylidene)ethyl]propanamide