Tiotropium Bromide Monohydrate ;
(1R,2R,4S,5S,7s)-7-[(2-Hydroxy-2,2-dithiophen-2-ylacetyl)oxy]-9,9-dimethyl-3-oxa-9-azoniatricyclo[3.3.1.02,4]nonane bromide monohydrate ;
CAS # 136310-93-5 (anhydrous) ; 139404-48-1 & 411207-31-3 (monohydrate) ;
C19H22NBrO4S2 . H2O ;
MW: 490.40 ;