2,2'-Dihydroxy-4-butoxybenzofenon [Czech] 2,2'-Dihydroxy-4-butoxybenzophenone 25827-46-7 4-Butoxy-2,2'-dihydroxybenzophenone BENZOPHENONE, 2,2'-DIHYDROXY-4-BUTOXY- BRN 1887282 Benzophenone, 4-butoxy-2,2'-dihydroxy- Cyasorb UV 287 Methanone, (4-butoxy-2-hydroxyphenyl)(2-hydroxyphenyl)- (9CI)