Argatroban Catalogue A176410 CAS 74863-84-6 M.W 508.63 M.F C23H36N6O5S Specifications FAQs (2R,4R)-4-methyl-1-(((3-methyl-1,2,3,4-tetrahydroquinolin-8-yl)sulfonyl)-L-arginyl)piperidine-2-carboxylic acid