15131-43-8 2-Hydroxy-4-butoxybenzofenon [Czech] 2-Hydroxy-4-butoxybenzophenone 4-Butoxy-2-hydroxybenzophenone BENZOPHENONE, 2-HYDROXY-4-BUTOXY- BRN 1914065 Dastib N(sub 1) Methanone, (4-butoxy-2-hydroxyphenyl)phenyl-