4,4'-Dihydroxydiphenylmethane 4,4'-methanediyl-di-phenol 4,4'-methylenebis-phenol 4,4'-methylenediphenol 620-92-8 InChI=1/C13H12O2/c14-12-5-1-10(2-6-12)9-11-3-7-13(15)8-4-11/h1-8,14-15H,9H bis(4-hydroxyphenyl)methane phenol, 4,4'-methylenebis-