Bisphenol A is a diphenylmethane derivative with two hydroxyphenyl groups. Bisphenol A (BPA) is a colorless solid that is used in the synthesis of commercial plastics, including polycarbonates and epoxy resins, which are incorporated into a wide variety of consumer goods. Ingested BPA may exhibit estrogenic effects. Exposure to BPA may increase the risk of certain cancers. 4,4'-isopropylidenediphenol appears as white to light brown flakes or powder. Has a weak medicine odor. Sinks in water. (USCG, 1999)