LCZ696 Impurity 5 Catalogue L524675 CAS N/A M.W 832.99 M.F C46H52N2O10Ca Specifications FAQs Calcium bis[4-{[(1S,3R)-1-([1,1'-biphenyl]-4-ylmethyl)-4-methoxy-3-methyl-4-oxobutyl]amino}-4-oxobutanoate]