4,4'-Sulfonyldiphenol

4,4'-Sulfonyldiphenol (CAS 80-09-1), commonly known as BPS, is a bisphenol analogue used as a monomer and chemical intermediate across polymer and specialty chemical manufacturing.

It functions primarily as a building block in the synthesis of polysulfone resins, epoxy systems, and other high-performance polymers where thermal and chemical resistance are required.

In plastics and polymer manufacturing, BPS is incorporated into polysulfone and polyethersulfone chains to produce engineering resins used in membranes, filtration components, and medical-grade plastics.

The paper and textile industries use BPS as a color developer in thermal recording papers and as a dye-fixing agent in fabric treatment processes for industrial applications.

Formulators in personal care and cosmetics evaluate BPS as a functional ingredient in product stabilization systems. It also serves as a pharmaceutical intermediate in the synthesis of active compounds.

Its antioxidant character supports its use in stabilizing polymer formulations against degradation during processing. 4,4'-Sulfonyldiphenol is supplied as a white to off-white crystalline powder.

Technical and pharmaceutical-grade specifications are the most commonly available, with purity levels typically ranging from 98% to 99%+. Packaging options generally include 25 kg bags or drums.

Bulk quantities are available for industrial procurement to meet large-scale manufacturing needs. This chemical is essential for high-performance applications requiring durability and stability.