Description

4,4'-Dihydroxy-3,5-Di-(Hydroxymethyl)Diphenylmethane is a multifunctional phenolic compound that serves as a versatile building block in advanced polymer synthesis. Its molecular structure, featuring multiple reactive hydroxyl and hydroxymethyl groups, makes it a valuable intermediate for creating high-performance, cross-linked materials with enhanced thermal and mechanical properties. This chemical is essential for manufacturers in the epoxy resin, specialty adhesive, and advanced composite industries seeking to develop products with superior durability and chemical resistance.

Application

• Epoxy Resin Curing Agent & Modifier: Used as a co-curing agent or modifier to enhance cross-linking density, thermal stability, and chemical resistance in high-performance epoxy systems for coatings, adhesives, and composites.
• Phenolic Resin Synthesis: Acts as a key monomer or cross-linking agent in the production of novolac and resole-type phenolic resins for molding compounds, laminates, and refractory materials.
• Polyurethane Chain Extender: Functions as a chain extender or cross-linker in polyurethane elastomer and foam formulations, improving hardness, tensile strength, and heat resistance.
• Benzoxazine Resin Precursor: Serves as a raw material for synthesizing benzoxazine resins, a class of high-performance thermosetting polymers known for their excellent flame retardancy and low dielectric constant.
• Flame Retardant Additive: Incorporated as a reactive intermediate in the synthesis of halogen-free flame retardants for engineering plastics and textiles.
• Specialty Adhesive Formulation: Utilized in high-temperature and structural adhesive formulations to improve bond strength and environmental durability.
• Advanced Composite Materials: Employed in the matrix resin for carbon fiber and glass fiber reinforced composites used in aerospace, automotive, and electrical applications.

Basic Information

Product Name	4,4'-Dihydroxy-3,5-Di-(Hydroxymethyl)Diphenylmethane
CAS No.	98711-09-2
Molecular Formula	C17H20O4
Molecular Weight	288.34 g/mol
Synonyms	4,4'-Dihydroxy-3,3',5,5'-tetramethyldiphenylmethane; 4,4'-Methylenebis(2,6-dimethylphenol); Bis(4-hydroxy-3,5-dimethylphenyl)methane; 2,2'-Methylenebis(4,6-dimethylphenol); Tetramethyl bisphenol F; TMBPF; Phenol, 4,4'-methylenebis[2,6-dimethyl-
EINECS	Contact for details

Quality Control

Our 4,4'-Dihydroxy-3,5-Di-(Hydroxymethyl)Diphenylmethane 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 precise specifications for high-performance polymer 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 product is hygroscopic (moisture-sensitive). Keep the container tightly sealed when not in use to minimize exposure to atmospheric moisture, which can affect product quality and performance.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	150 - 155 °C
Loss on Drying	≤ 1.0 %
Heavy Metals (as Pb)	≤ 10 ppm

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