(R)-4-(ethylamino)-2-(3-hydroxypropyl)-3,4-dihydro-2H-thieno[3,2-e][1,2]thiazine-6-sulfonamide 1,1-dioxide hydrobromide; O-Desmethyl Brinzolamide hydrobromide; Brinzolamide O-Desmethyl Impurity
(R)-4-(ethylamino)-2-(3-hydroxypropyl)-3,4-dihydro-2H-thieno[3,2-e][1,2]thiazine-6-sulfonamide 1,1-dioxide hydrobromide; O-Desmethyl Brinzolamide hydrobromide; Brinzolamide O-Desmethyl Impurity