Apixaban Impurity E Catalogue A186735 CAS 503614-92-4 M.W 460.48 M.F C25H24N4O5 Specifications FAQs 1-(4-methoxyphenyl)-7-oxo-6-(4-(2-oxopiperidin-1-yl)phenyl)-4,5,6,7-tetrahydro-1H-pyrazolo[3,4-c]pyridine-3-carboxylic acid