Description

2,4'-Dihydroxydiphenyl Sulfone is a versatile organic compound primarily recognized as a key intermediate in the synthesis of high-performance polymers and specialty chemicals. Its bifunctional phenolic structure makes it valuable for creating materials with enhanced thermal stability and mechanical properties. This product is essential for manufacturers in the polymer, epoxy resin, and advanced material sectors seeking to develop heat-resistant and durable formulations.

Application

• Primary intermediate for the synthesis of polyethersulfone (PES) and polysulfone (PSU) engineering thermoplastics.
• Cross-linking agent and curing modifier in high-temperature epoxy resin systems.
• Building block for specialty dyes, pigments, and photographic chemicals.
• Intermediate in the production of antioxidants and polymer stabilizers.
• Used in research and development of novel pharmaceutical intermediates.
• Component in the synthesis of advanced composite materials for aerospace and automotive applications.

Basic Information

Product Name	2,4'-Dihydroxydiphenyl Sulfone
CAS No.	5397-34-2
Molecular Formula	C12H10O4S
Molecular Weight	250.27 g/mol
Synonyms	2,4'-Dihydroxydiphenylsulfone; 4-Hydroxyphenyl 2-hydroxyphenyl sulfone; 2,4'-Bisphenol S; Bis(2-hydroxyphenyl) sulfone (isomer); 1-Hydroxy-4-[(2-hydroxyphenyl)sulfonyl]benzene; 4,2'-Dihydroxydiphenyl sulfone; 2,4'-DHDPS
EINECS	226-408-5

Quality Control

Our 2,4'-Dihydroxydiphenyl Sulfone is produced under a stringent quality management system. Every batch undergoes comprehensive analytical testing to ensure it meets precise specifications for purity and consistency. Certificates of Analysis (COA) detailing key parameters such as assay, identity, and impurity profiles 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, and well-ventilated area at room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed to minimize exposure to atmospheric moisture.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0%
Melting Point	245 - 250 °C
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.1%

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