24562-87-6 3,4,5-Trimethoxybenzoic acid 3,4-dihydro-2H-1,4-ethanoquinolin-3-yl ester hydrochloride 3-(3',4',5'-Trimethoxybenzoyloxy)benz(b)quinuclidine hydrochloride Benzoic acid, 3,4,5-trimethoxy-, 3,4-dihydro-2H-1,4-ethanoquinolin-3-yl ester, hydrochloride