Description

4,4'-Sulfonylbis(Benzenemethanol) is a versatile aromatic diol building block characterized by its sulfonyl and benzylic alcohol functional groups. This compound matters for its role as a key monomer in the synthesis of high-performance polymers, including polyethersulfones and polyarylates, which demand excellent thermal stability and mechanical properties. Industries such as advanced polymer manufacturing, specialty chemical synthesis, and pharmaceutical intermediate production require this high-purity intermediate for developing innovative materials and fine chemicals.

Application

• Polymer Synthesis: Primary monomer for producing high-temperature resistant polyethersulfones (PES) and polyarylethersulfones (PAES).
• Pharmaceutical Intermediates: Serves as a crucial building block in the synthesis of active pharmaceutical ingredients (APIs) and other bioactive molecules.
• Crosslinking Agent: Used in the formulation of epoxy resins, polyurethanes, and other thermosetting polymers to enhance network density and performance.
• Liquid Crystal Polymers (LCPs): A key diol component in the production of aromatic polyester-based LCPs for electronics and high-precision components.
• Specialty Coatings & Adhesives: Imparts rigidity and thermal stability to high-performance coating and adhesive formulations.
• Chemical Research & Development: Employed in organic synthesis as a symmetrical bifunctional reagent for constructing complex molecular architectures.

Basic Information

Product Name	4,4'-Sulfonylbis(Benzenemethanol)
CAS No.	52123-62-3
Molecular Formula	C14H14O4S
Molecular Weight	278.32 g/mol
Synonyms	Bis(4-(hydroxymethyl)phenyl) sulfone; 4,4'-Bis(hydroxymethyl)diphenyl sulfone; Dihydroxymethyldiphenylsulfone; 4,4'-Dihydroxymethyldiphenylsulfone; Sulfonylbis(4-phenylenemethanol); BHPS; 4,4'-Sulfonyldibenzyl alcohol; 1,1'-Sulfonylbis[4-(hydroxymethyl)benzene]
EINECS	Contact for details

Quality Control

Our 4,4'-Sulfonylbis(Benzenemethanol) is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets exacting standards for polymer-grade and pharmaceutical intermediate applications. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with every shipment and is available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent moisture absorption and oxidation. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	168°C - 172°C
Loss on Drying	≤ 0.5%
Heavy Metals (as Pb)	≤ 10 ppm
Residue on Ignition	≤ 0.1%

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