Description

4,4'-Sulfonylbis(Phenol)Diacetate is a high-purity organic intermediate of significant commercial importance. This compound serves as a critical building block in the synthesis of advanced polymers and specialty chemicals, offering reliable performance and consistent quality. It is primarily sought after by manufacturers in the polymer, pharmaceutical, and agrochemical industries for research and production applications.

Application

• Polymer Synthesis: A key monomer or intermediate in the production of high-performance polyethersulfones (PES), polysulfones (PSU), and other engineering thermoplastics.
• Pharmaceutical Intermediates: Used in the synthesis of active pharmaceutical ingredients (APIs) and other drug substances requiring a sulfonyl-bridged bisphenol structure.
• Agrochemicals: Serves as a precursor in the manufacture of certain herbicides, fungicides, and plant growth regulators.
• Crosslinking Agent: Functions as a crosslinker in epoxy resin systems and other thermosetting polymers to enhance thermal and mechanical properties.
• Chemical Research: Utilized as a standard or reagent in organic synthesis and material science research for developing new compounds.
• Dye and Pigment Manufacturing: Acts as an intermediate in the synthesis of specialized dyes and organic pigments.

Basic Information

Product Name	4,4'-Sulfonylbis(Phenol)Diacetate
CAS No.	5456-51-9
Molecular Formula	C₁₆H₁₄O₆S
Molecular Weight	334.34 g/mol
Synonyms	Bis(4-acetoxyphenyl) sulfone; 4,4'-Diacetoxydiphenyl sulfone; 4-Acetoxyphenyl sulfone; DADPS; Phenol, 4,4'-sulfonylbis-, diacetate; 4,4'-Sulfonyldiphenol diacetate; 1,1'-Sulfonylbis[4-acetoxybenzene]; Bis(p-acetoxyphenyl) sulfone
EINECS	226-704-9

Quality Control

Our 4,4'-Sulfonylbis(Phenol)Diacetate is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation (IR), to ensure it meets precise customer specifications and industry standards. A comprehensive Certificate of Analysis (COA) detailing all test results is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from strong oxidizing agents, strong acids, and strong bases.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	195°C - 205°C
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.