Bisphenol S

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Chemical structure

Bisphenol S (BPS) is an organic chemical compound which is sometimes used in the production of plastics. It is also used in other products, including certain paper products, corrosion inhibitors and fast-drying epoxy glues. The chemical formula of BPS is (HOC6H4)2SO2. This chemical is closely related to Bisphenol A (BPA) and Bisphenol F (BPF).

Location

Bisphenol S can be found in many places today. It is used in a variety of plastics, but also in plastic coatings and other processed materials. The Washington Post released a list of basic things which BPS is found in:

  • hard plastic sports bottles
  • plastic food storage containers
  • food wrap
  • hard and flexible packaging
  • deli containers
  • plastic bags
  • baby bottle components (nipple, ring, liner, etc.)
  • plastic dinnerware and plates
  • non-stick cookware
  • plastic cleaning products
  • thermal receipt paper
  • canned food and drink
  • tissue paper and toilet paper[1]

While this list is a good start, BPS can also sometimes be found in other places, which one might not immediately think of. For example, food cans are usually coated on the inside with a plastic-like film. This film usually contains Bisphenol A, but sometimes Bisphenol S is present as well as or in place of BPA.

Health concerns

The University of Texas was the first institution to officially link low concentrations of Bisphenol S, also known as BPS, to estrogen disruption.[2] Since then, concern has continued to mount as further research has shown similar results. Additionally, BPS seems to negatively effect brain and embryonic development.[1]
Bisphenol S is being used largely as a replacement for the better-known Bisphenol A (BPA), but there is growing concern as to whether this substance is actually safer than its endocrine-disrupting cousins. BPS is believed by some researches to be less harmful is small quantities than BPA, but BPS is also more easily absorbed, especially through the skin, so the result will be a higher quantity of absorption.[3]

References