English name：SDP；4,4'-Sulfonyldiphenol；4,4'-Dihydroxydiphenylsulfone；Bis(4-hydroxyphenyl) sulfone；Bisphenol S

Other names: 4,4 '- dihydroxydiphenylsulfone; Bisphenol s; 4,4 '- sulfonyldiphenol

CAS No.: 80-09-1

C12H10O4S=250.27

Grade: CP

Melting point: ≥ 239 ℃

Ethanol dissolution test: acceptable

Burning residue: ≤ 0.1%

Physicochemical properties: white or nearly white acicular crystal. Soluble in ethanol, ether and acetone, insoluble in water. Irritating

Purpose: biochemical research. Organic synthesis. Used as a fixing agent. In addition, it can be used as plating solution additive, leather tanning agent, dispersant for high-temperature dyeing of disperse dyes, phenolic resin hardening accelerator, resin flame retardant, etc. It is also an intermediate of pesticides, dyes and auxiliaries. As a substitute for bisphenol A, it can be used as a raw material of polycarbonate, epoxy resin, polyester and phenolic resin, as well as a raw material of polysulfone and polyethersulfone. The product is also used to manufacture color photographic materials, photographic contrast enhancers, thermosensitive recording materials (color developers), daily surfactants and high-efficiency deodorants.

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