The bisphenols are a group of chemical compounds with two hydroxyphenyl functionalities. Most of them are based on diphenylmethane.

Human exposure to bisphenol A (BPA) ☆
Bisphenol-A: an estrogenic substance is released from polycarbonate flasks during autoclaving.
Bisphenol-A and the great divide: a review of controversies in the field of endocrine disruption.
Urinary concentrations of bisphenol A and 4-nonylphenol in a human reference population.
Exposure of the U.S. Population to Bisphenol A and 4-tertiary-Octylphenol: 2003a??2004
Association of urinary bisphenol A concentration with medical disorders and laboratory abnormalities in adults.
A review of the environmental fate, effects, and exposures of bisphenol A
Maternal Nutrient Supplementation Counteracts Bisphenol A-Induced DNA Hypomethylation in Early Development
Urinary, circulating, and tissue biomonitoring studies indicate widespread exposure to bisphenol A.
Large effects from small exposures. III. Endocrine mechanisms mediating effects of bisphenol A at levels of human exposure.