Description

4,4'-Dihydroxy-3,3'-Dimethyldiphenylmethane is a high-purity bisphenol derivative and a key chemical intermediate. Its molecular structure provides excellent thermal stability and reactivity, making it a valuable building block for advanced polymer synthesis. This compound is essential for manufacturers in the polymer, epoxy resin, and specialty chemical industries seeking to develop high-performance materials.

Application

• Polymer Intermediate: A crucial monomer for the synthesis of specialized polycarbonates, epoxy resins, and phenolic resins with enhanced thermal and mechanical properties.
• Epoxy Curing Agent/Modifier: Used to modify epoxy resin systems, improving flexibility, chemical resistance, and curing characteristics.
• Flame Retardant Synergist: Acts as a co-monomer or additive in flame-retardant polymer formulations, particularly in engineering plastics.
• Antioxidant Precursor: Serves as a key raw material in the manufacture of high-performance phenolic antioxidants for plastics and rubber stabilization.
• Adhesive & Coating Formulations: Incorporated into high-performance adhesives and industrial coatings to enhance durability and adhesion.
• Specialty Chemical Synthesis: An important intermediate for synthesizing more complex molecules used in agrochemicals and pharmaceuticals.

Basic Information

Product Name	4,4'-Dihydroxy-3,3'-Dimethyldiphenylmethane
CAS No.	2467-25-6
Molecular Formula	C15H16O2
Molecular Weight	228.29 g/mol
Synonyms	3,3'-Dimethyl-4,4'-dihydroxydiphenylmethane; 4,4'-(Methylenedi-1,3-phenylene)diphenol; Bisphenol C; 3,3'-Dimethylbisphenol F; DHDM; 1,1'-(Methylenedi-3,5-xylene)diphenol; Bis(4-hydroxy-3-methylphenyl)methane; 4,4'-Dihydroxy-3,3'-dimethylbenzhydrol (deprecated)
EINECS	219-567-5

Quality Control

Our 4,4'-Dihydroxy-3,3'-Dimethyldiphenylmethane is produced under a stringent quality management system. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation, to ensure it meets exacting specifications for industrial and advanced applications. A Certificate of Analysis (COA) documenting purity, physical properties, and impurity profiles is provided with every shipment to guarantee traceability and consistency.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at a controlled room temperature (15-25°C). This material is easily oxidized and should be stored under an inert atmosphere (e.g., nitrogen) for long-term preservation to maintain optimal purity. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	158 - 162 °C
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%

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