1,3-bis(4-hydroxyphenyl)acetone 2-propanone, 1,3-bis(4-hydroxyphenyl)- InChI=1/C15H14O3/c16-13-5-1-11(2-6-13)9-15(18)10-12-3-7-14(17)8-4-12/h1-8,16-17H,9-10H