4,4'-Sulfonyldiphenol

CAS Number
80-09-1
EC Number
201-250-5
Abbreviation
BPS

What is 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 in polymer and specialty chemical manufacturing.

Where is 4,4'-Sulfonyldiphenol used?

  • Polymers: building block in polysulfone resins and epoxy systems
  • Plastics: incorporated into polysulfone and polyethersulfone chains for membranes, filtration components and medical-grade plastics
  • Paper and textiles: color developer in thermal recording papers and dye-fixing agent in fabric treatment
  • Personal care: functional ingredient in product stabilization systems
  • Pharmaceuticals: intermediate in the synthesis of active compounds
  • It stabilizes polymer formulations against degradation during processing.

Commercial specifications

  • Purity typically 98% to 99%+
  • 25 kg bags or drums
  • Bulk quantities for industrial procurement

Other Names (Synonyms)

4,4′-sulfonylbisphenol|4-(4-hydroxyphenyl)sulfonylphenol|Bisphenol s|BPS

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What are the physical properties of 4,4'-Sulfonyldiphenol?

Melting Point 240.5 °C
Boiling Point 230-240 °C
Density 1.366
Appearance light yellow crystalline powder
Color White to grayish-green
Odor odorless
Form Crystalline Powder
Water Solubility 1.1 g/L (20 ºC)
Vapor Pressure <0.0001 Pa (20 °C)
Refractive Index 1.5220 (estimate)
pH 6.6-7.0 (100g/l, H2O, 20℃)
Log P 1.2 at 23℃

How is 4,4'-Sulfonyldiphenol classified and handled safely? Learn More

Danger
GHS08· Health Hazard

Hazard Statements

H360 May damage fertility or the unborn child
H371 May cause damage to organs
H373 May causes damage to organs through prolonged or repeated exposure
H402 Harmful to aquatic life
H412 Harmful to aquatic life with long lasting effects

Precautionary Statements

P203 Obtain, consult and follow expert instructions for use.
P260 Do not breathe dust/fume/gas/mist/vapours/spray.
P264 Wash … thoroughly after handling.
P270 Do not eat, drink or smoke when using this product.

Which trade and regulatory codes apply to 4,4'-Sulfonyldiphenol?

HS Code 29309070
Storage Class 6.1C - Combustible acute toxic Cat.3 toxic compounds or compounds which causing chronic effects
WGK (Germany) 2
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