Not less than-95.0%
(1R,2R,4S,5S,7s,9r)-9-Butyl-9- methyl-7-[(2-phenylprop-2-enoyl)oxy]-3-oxa-9-azoniatricyclo[3.3.1.02,4]nonane Bromide;(1R,2R,4S,5S,7s,9r)-9-Butyl-9-methyl-7-((2-phenylacryloyl)oxy)-3-oxa-9-azatricyclo[3.3.1.02,4]nonan-9-ium Bromide