Bisphenol S (BPS, CAS 80-09-1) consists of two hydroxyphenyl groups connected by a sulfonyl group and has the chemical formula C₁₂H₁₀O₄S

Chemical Name: 4,4'-Dihydroxy Biphenyl Sulfone (Bisphenol S) BPS

Synonyms: 4,4′-Sulfonyldiphenol; Bis(4-hydroxyphenyl) sulfone; Bisphenol S

CAS No.: 80-09-1

EINECS No.: 201-250-5

Molecular Formula: C₁₂H₁₀O₄S

Molecular Weight: 250.27 g/mol

Specification:

Appearance: White crystal powder

Assay: 99.5% min

Melting Point: ≥245 ºC

Moisture: ≤0.5%

Ignition residue: ≤0.1%

Solubility: Easily dissolved in alcohol, acetonitrile, dimethyl sulfoxide, basic solution,heated water, and slightly dissolved in cool water.

Packaging: 25kg paperbag or 500kg container

Usage:

It is used as monomer in synthetic polymers such as polyethersulfone (PES) and polysulfone (PSU) as well as in epoxy resins also used for food contact

Bisphenol S (BPS) is part of polyethersulfone (PES) plastic, which is used to make hard plastic items and synthetic fibers for clothing and other textiles. BPS may also be used to make colors last longer in some fabrics. It is a common replacement for BPA in some types of paper receipts, and is also in protective coatings inside some food cans. Consumer products marketed as “BPA-free” might contain BPS.

In thermal paper industry, it mainly used as developer.