(R)-Methyl 2-(2-chlorophenyl)-2-((2-(thiophen-2-yl)ethyl) amino)acetate hydrochloride;Clopidogrel Open Ring R-Enantiomer;(Methyl(R)-2-(2-chlorophenyl)-2-((2-(thiophen-2-yl)ethyl)amino)acetate,hydrochloride); methyl (2R)-2-(2-chlorophenyl)-2-(2-thiophen-2-ylethylamino)acetate;hydrochloride