英文别名4,5-Dibromo-6,7-dihydro-1H-indeno[5,4-b]furan-8(2H)-one; 4,5-Dibromo-1,2,6,7-tertahydro-8H-indeno[5,4-b]furan-8-one; 4,5-Dibromo-1,2,6,7-tetrahydro-8H-indeno[5,4-β]furan-8-one; 8H-Indeno[5,4-b]furan-8-one, 4,5-dibroMo-1,2,6,7-tetrahydro-; 4,5-dibromo-1,2,6,7-tetrahydroindeno[5,4-b]furan-8-one; Ramelteon Impurity 29; RaMelteon iMpurity I; 4,5-dibromo-1,2,6,7-tetrahydrocyclopenta[e][1]benzofuran-8-one; 4,5-dibromo-1,2,6,7-tetrahydro-8H indeno[5,4-b]furan-8-one; 8H-Indeno[5,4-b]furan-8-one,4,5-dibromo-1,2,6,7-tetrahydro 
