Synonyms(1R,5S)-8-methyl-8-azabicyclo[3.2.1]octan-3-yl isobutyrate hydrochloride; Tropine isobutyrate Close (1R,5S)-8-methyl-8-azabicyclo[3.2.1]octan-3-yl isobutyrate hydrochloride; Tropine isobutyrate Related products Butropine HCl M.F. M.W. 211.31 36.46 CAT# AR-B02362 CAS# 495-80-7 (free base)