Dabigatran Etexilate Impurity L Catalogue D112432 CAS 1610758-20-7 M.W 627.75 M.F C34H41N7O5 Specifications FAQs ethyl 3-(2-(((4-(N-((2-ethylbutoxy)carbonyl)carbamimidoyl)phenyl)amino)methyl)-1-methyl-N-(pyridin-2-yl)-1H-benzo[d]imidazole-5-carboxamido)propanoate