Ramelteon Impurity C Catalogue L150863 CAS N/A M.W 409.56 M.F C26H35NO3 Specifications FAQs 2-(1,6,7,8-tetrahydro-2H-indeno[5,4-b]furan-8-yl)ethan-1-amine (S)-2-(4-isobutylphenyl)propanoate