英文别名Vildagliptin Impurity 61 Tosylate; 2-Pyrrolidinecarbonitrile 4-methylbenzenesulfonate (1:1); 4-Methylbenzolsulfonsäure --2-pyrrolidincarbonitril (1:1); 2-Pyrrolidinecarbonitrile, 4-methylbenzenesulfonate (1:1); Acide 4-méthylbenzènesulfonique - 2-pyrrolidinecarbonitrile (1:1) 
