Description

4,4'-Dihydroxy-3-(Hydroxymethyl)Diphenylmethane is a multifunctional phenolic compound that serves as a versatile building block and intermediate in advanced polymer synthesis. Its molecular structure, featuring both phenolic hydroxyl and benzylic alcohol groups, makes it a valuable monomer for creating high-performance, heat-resistant resins with excellent mechanical properties. This chemical is essential for manufacturers in the epoxy resin, specialty adhesive, and advanced composite materials industries seeking to enhance product durability and thermal stability.

Application

• Epoxy Resin Hardener & Modifier: Used as a co-hardener or additive to improve the cross-linking density, thermal resistance, and mechanical strength of epoxy systems for coatings, adhesives, and composites.
• Phenolic Resin Synthesis: Acts as a key monomer in the production of novel phenolic resins, including benzoxazines, for high-temperature applications.
• Polymer Cross-linking Agent: Employed to cross-link various polymers, enhancing their chemical resistance and dimensional stability.
• Flame Retardant Intermediate: Serves as a precursor in the synthesis of halogen-free flame retardants for plastics and textiles.
• Specialty Adhesive Formulation: Incorporated into structural adhesive formulations to boost high-temperature performance and adhesion.
• Photoresist and Electronic Chemicals: Used in the development of advanced photoresists and other electronic materials due to its reactive sites.

Basic Information

Product Name	4,4'-Dihydroxy-3-(Hydroxymethyl)Diphenylmethane
CAS No.	21243-68-5
Molecular Formula	C15H16O3
Molecular Weight	244.29 g/mol
Synonyms	3-Hydroxymethyl-4,4'-dihydroxydiphenylmethane; Bis(4-hydroxy-3-hydroxymethylphenyl)methane; 1,1'-Methylenebis[2-(hydroxymethyl)-4-hydroxybenzene]; Tetramethylol-Bisphenol F; TMBPF; Phenol, 4,4'-methylenebis[2-(hydroxymethyl)-; Bisphenol F derivative
EINECS	244-289-8

Quality Control

Our 4,4'-Dihydroxy-3-(Hydroxymethyl)Diphenylmethane is produced under a strict quality management system. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets precise specifications for high-performance applications. Certificates of Analysis (COA) documenting all critical parameters are available upon request to support your quality assurance and regulatory compliance needs.

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). This material is hygroscopic (moisture-sensitive) and should be kept under dry conditions to prevent absorption of moisture. It is also easily oxidized and should be stored under an inert atmosphere such as nitrogen for long-term storage to maintain purity and stability.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 1.0%
Heavy Metals	≤ 20 ppm

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