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Organic Intermediate/Raw materials

4,4′-Sulfonyldiphenol CAS 80-09-1

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Product Name: 4,4′-Sulfonyldiphenol


4,4′-Dihydroxydiphenylsulfone; Bis(4-hydroxyphenyl) sulfone; Bisphenol S; SDP

Molecular Structure:


Item Specifications
CAS No. 80-09-1
Molecular Formula C12H10O4S
Molecular Weight 250.27
Appearance White powder
Assay 70%;95%;98%;99.5%
Moisture 1% max

Packing: 25kg/Bag



4,4′-Sulfonyldiphenol, also known as Bisphenol S has excellent heat resistance, light resistance, and antioxidant properties, and is a raw material for synthesizing polycarbonate, epoxy resin, polysulfone, and polyether inkstone resin. Bisphenol S can also be used to synthesize dye fixing agents, leather tanning agents, and as intermediates for electroplating additives, dyes, pharmaceuticals, pesticides, and additives.


  1. Mainly used as fixing agent.
  2. Used as plating bath additive, leather tanning agent, dispersing agent for the high temperature dyeing of disperse dye, phenolic resin hardening accelerator and resin flame retardant.
  3. Used as an intermediate for pesticides, dyes and auxiliaries.
  4. As a substitute for bisphenol A, it can be used as a raw material for polycarbonate, epoxy resin, polyester and phenolic resin.
  5. Used as a color photographic material, a contrast enhancer, a thermosensitive recording material (color developing agent), a daily surfactant and a high-efficiency deodorant.



Stored in a cool dry and ventilated place.


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