Synonyms4,4'-methylenebis(3-hydroxy-2-naphthoic acid) Close 4,4'-methylenebis(3-hydroxy-2-naphthoic acid) Related products Embonic Acid M.F. M.W. 388.38 CAT# AR-E01224 CAS# NA Pamoic Acid M.F. M.W. 388.37 CAT# AR-M03353 CAS# 130-85-8