130-85-8 2-Naphthalenecarboxylic acid, 4,4'-methylenebis(3-hydroxy-, dipotassium salt 4,4'-Methylenebis(3-hydroxy-2-naphthalenecarboxylic acid), dipotassium salt 68226-95-9 Dipotassium 4,4'-methylenebis(3-hydroxy-2-naphthoate) EINECS 269-333-9