Description

4,4'-Sulfonylbis(2-Methylphenol) is a high-purity bisphenol derivative characterized by its sulfonyl bridge and methyl-substituted phenolic groups. This compound serves as a critical monomer and intermediate in the synthesis of advanced polymers and specialty chemicals, offering enhanced thermal stability and chemical resistance. It is essential for manufacturers in the polymer, pharmaceutical, fine chemical, and material science industries seeking to develop high-performance products.

Application

• Polymer Synthesis: A key monomer for producing high-performance polyethersulfones (PES), polysulfones (PSU), and other engineering plastics with excellent thermal and mechanical properties.
• Pharmaceutical Intermediates: Used in the synthesis of active pharmaceutical ingredients (APIs) and drug candidates requiring a rigid, stable bisphenol core structure.
• Epoxy Resin Modifier: Acts as a co-monomer or hardener to enhance the heat resistance, chemical stability, and mechanical strength of epoxy resin systems.
• Specialty Chemical Production: Serves as a versatile building block for antioxidants, UV stabilizers, and other functional additives.
• Material Science Research: Utilized in R&D for developing novel polymeric materials, coatings, and composites with tailored properties.
• Cross-linking Agent: Employed in formulations requiring a difunctional phenolic compound to create cross-linked polymer networks.

Basic Information

Product Name	4,4'-Sulfonylbis(2-Methylphenol)
CAS No.	16346-97-7
Molecular Formula	C14H14O4S
Molecular Weight	278.32 g/mol
Synonyms	2,2'-Dihydroxy-5,5'-dimethyldiphenyl sulfone; Bis(2-hydroxy-5-methylphenyl) sulfone; 4,4'-Sulfonyldi-o-cresol; Phenol, 4,4'-sulfonylbis[2-methyl-; Dihydroxydimethyldiphenylsulfone; BPS-DMC; o,o'-Dihydroxydimethyldiphenylsulfone
EINECS	Contact for details

Quality Control

Our 4,4'-Sulfonylbis(2-Methylphenol) is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure it meets precise specifications for purity, identity, and impurity profiles. Certificates of Analysis (COA) documenting results from HPLC, IR, and other relevant methods are available upon request to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, 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 reference spectrum
Assay (HPLC)	≥ 98.0%
Melting Point	168°C - 172°C
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 20 ppm

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