| Synonyms: | 4-Hydroxy Ramelteon;N-[2-(4-Hydroxy-[(8S)-1,6,7,8-tetrahydro-2H-indeno[5,4-b]furan-8-yl])ethyl]propanaMide;(S)-N-(2-(4-hydroxy-1,6,7,8-tetrahydro-2H-indeno[5,4-b]furan-8-yl)ethyl)propionamide;Ramelteon Impurity 21;Propanamide, N-[2-[(8S)-1,6,7,8-tetrahydro-4-hydroxy-2H-indeno[5,4-b]furan-8-yl]ethyl]-;Ramelteon 4-Hydroxy Impurity;4-Hydroxy Ramelteon D5;4-[4-[4-(4-Hydroxyphenyl)piperazin-1-yl]phenyl]-2-pentan-3-yl-1,2,4-triazol-3-one |