Description

Bis(4-Hydroxy-3,5-Dimethylphenyl) Sulfone is a high-purity phenolic sulfone compound, valued for its role as a key monomer and intermediate in the synthesis of advanced polymers and specialty chemicals. Its chemical structure provides excellent thermal stability and reactivity, making it a critical building block for high-performance materials. This product is essential for manufacturers in the polymer, resin, and specialty chemical industries seeking reliable, high-quality raw materials.

Application

• Primary monomer for the synthesis of poly(arylene ether sulfone) (PAES) high-performance thermoplastics.
• Key intermediate in the production of epoxy resin hardeners and curing agents.
• Building block for specialty polymers requiring high thermal and chemical resistance.
• Used in the synthesis of pharmaceutical intermediates and active ingredients.
• Precursor for antioxidants and stabilizers in polymer formulations.
• Intermediate in the manufacture of dyes, pigments, and other fine chemicals.
• Research and development of novel advanced materials in academic and industrial labs.

Basic Information

Product Name	Bis(4-Hydroxy-3,5-Dimethylphenyl) Sulfone
CAS No.	13288-70-5
Molecular Formula	C16H18O4S
Molecular Weight	306.38 g/mol
Synonyms	4,4'-Sulfonylbis(2,6-dimethylphenol); 2,6-Dimethyl-4-hydroxyphenyl sulfone; Bis(2,6-dimethyl-4-hydroxyphenyl) sulfone; Phenol, 4,4'-sulfonylbis[2,6-dimethyl-; DHDPS; DHDPS Monomer; 2,2'-Sulfonylbis(4-hydroxy-3,5-dimethylbenzene); Tetramethylbisphenol S
EINECS	Contact for details

Quality Control

Our Bis(4-Hydroxy-3,5-Dimethylphenyl) Sulfone is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing to ensure it meets the high-purity standards required for polymer synthesis and fine chemical applications. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with each shipment and is available upon request.

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. This product is light-sensitive (store away from light).

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	245 - 250 °C
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 10 ppm

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