Bisphenols F and S are organic compounds, their chemical formulas are respectively C13H12O2and C12H10O4S and their CAS number are respectively 620-92-8 and 80-09-1.
Identified sources of bisphenols F and S are exclusively anthropogenic. Bisphenol F is used in epoxy resins and thermal papers, bisphenol S is used in epoxy resins, polycarbonate, polyethersulphone, thermal papers, phenolic resins and polyester resins.
ANSES has produced a report reviewing the possible alternatives to BPA in its different fields of application. BPA is primarily used in polycarbonate, in epoxy resins coating the inside of food tins, and as a developer in thermal paper (till receipts). 73 alternative solutions were identified. Link to the ANSES report on BPA replacement.
Another report, in two volumes, presents the results of a collective study assessing the risks posed by BPA to human health.