Vildagliptin Impurity I Catalogue V670349 CAS 565453-40-9 M.W 322.40 M.F C17H26N2O4 Specifications FAQs Synonyms: (S)-1-(2-(((1r,3R,5R,7S)-3-hydroxyadamantan-1-yl)amino)acetyl)pyrrolidine-2-carboxylic acid