英文同义词: | (1,2,6,7,-Tetrahydro-8H-indeno[5,4-b]furan-8-ylidene)acetonitrile;(1,2,6,7,-Tetrahydro-8H-indeno[5,4-β]furan-8-ylidene)acetonitrile;2-(1,2,6,7-tetrahydro-8H-indeno[5,4-b]furan-8-ylidene)acetonitrile;Acetonitrile, 2-(1,2,6,7-tetrahydro-8H-indeno[5,4-b]furan-8-ylidene)-;Ramelteon Impurity 55 |