Description

4,4'-Dihydroxytetraphenylmethane is a high-purity organic compound belonging to the class of polyphenolic compounds. This chemical serves as a versatile intermediate and building block in advanced material synthesis, valued for its symmetrical aromatic structure and dual phenolic functionality. It is primarily utilized by manufacturers in the polymer, specialty chemical, and pharmaceutical industries for applications requiring high-performance monomers and cross-linking agents.

Application

• Polymer Industry: Key monomer for the synthesis of high-performance engineering plastics, epoxy resins, and polycarbonates.
• Cross-linking Agent: Used in the production of thermosetting resins to enhance thermal stability and mechanical properties.
• Pharmaceutical Intermediate: Serves as a crucial building block in the synthesis of complex active pharmaceutical ingredients (APIs).
• Liquid Crystal Polymers (LCPs): An important raw material in the manufacture of LCPs for electronics and high-temperature applications.
• Specialty Additives: Employed in the formulation of antioxidants, UV stabilizers, and other functional additives for polymers.
• Research & Development: Used in academic and industrial R&D for developing novel polymeric materials and organic compounds.

Basic Information

Product Name	4,4'-Dihydroxytetraphenylmethane
CAS No.	1844-01-5
Molecular Formula	C25H20O2
Molecular Weight	352.43 g/mol
Synonyms	Bis(4-hydroxyphenyl)diphenylmethane; 4,4'-(Diphenylmethylene)diphenol; Tetraphenylmethane-4,4'-diol; DHDPM; 1,1-Bis(4-hydroxyphenyl)-1-phenylethane (common misnomer); 4,4'-Dihydroxytetraphenylethane (common misnomer); p,p'-Dihydroxytetraphenylmethane
EINECS	217-423-5

Quality Control

Our 4,4'-Dihydroxytetraphenylmethane is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets the high standards required for industrial and research applications. A comprehensive Certificate of Analysis (COA) detailing purity, assay, 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, and well-ventilated area at room temperature (15-25°C). 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	160 - 165 °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.