Glycopyrronium STD-(1,1-dimethylpyrrolidin-1-ium-3-yl) 2-cyclopentyl-2-hydroxy-2-phenylacetate; (S)-3-((R)-2-Cyclopentyl-2-hydroxy-2-phenylacetoxy)-1,1-dimethylpyrrolidin-1-ium
Glycopyrronium EP-Impurity-I-[(3S)-1,1-dimethylpyrrolidin-1-ium-3-yl] (2R)-2-(4-chlorophenyl)-2-cyclopentyl-2-hydroxyacetate; (3RS)-3-[(2SR)-(2-(4-chlorophenyl)-2-cyclopentyl-2-hydroxyacetyl)oxy]-1,1-dimethylpyrrolidinium