bisphenol
bisphenol
By usage, the methylenediphenols, HOC<small><sub>6</sub></small>H<small><sub>4</sub></small>CH<small><sub>2</sub></small>C<small><sub>6</sub></small>H<small><sub>4</sub></small>OH, commonly <em>p</em>,<em>p</em>-methylenediphenol, and their substitution products (generally derived from condensation of two equivalent amounts of a phenol with an aldehyde or ketone). The term also includes analogues in the the methylene (or substituted methylene) group has been replaced by a heteroatom.