Description

4,4'-(1,2-Diphenylethene-1,2-Diyl)Diphenol is a high-purity organic compound belonging to the stilbene family, characterized by its central ethene bridge flanked by phenolic groups. This structure makes it a valuable intermediate and functional monomer for advanced material synthesis, offering excellent thermal stability and optical properties. It is primarily sought after by R&D laboratories and industrial manufacturers in the polymer, specialty chemical, and pharmaceutical sectors for creating high-performance materials.

Application

• Polymer & Resin Synthesis: Key monomer for producing high-performance engineering plastics, epoxy resins, and polycarbonates with enhanced thermal and mechanical properties.
• Liquid Crystal & OLED Materials: Serves as a core building block (mesogen) in the synthesis of liquid crystal displays (LCDs) and organic light-emitting diodes (OLEDs) due to its rigid, conjugated structure.
• Pharmaceutical Intermediates: Used in the research and development of active pharmaceutical ingredients (APIs), particularly those with estrogenic or antioxidant activity.
• UV Stabilizers & Additives: Acts as a precursor for manufacturing ultraviolet (UV) absorbers and stabilizers for plastics, coatings, and cosmetics.
• Cross-linking Agent: Employed in formulations requiring cross-linking to improve the durability and chemical resistance of coatings, adhesives, and composite materials.
• Organic Synthesis & Research: A versatile reagent in organic chemistry for constructing complex molecules via coupling reactions, serving academic and industrial R&D.

Basic Information

Product Name	4,4'-(1,2-Diphenylethene-1,2-Diyl)Diphenol
CAS No.	68578-79-0
Molecular Formula	C26H20O2
Molecular Weight	364.44 g/mol
Synonyms	4,4'-(E)-1,2-Diphenylethene-1,2-diyl)diphenol; 4,4'-Dihydroxystilbene; trans-4,4'-Dihydroxystilbene; (E)-4,4'-Stilbenediol; 1,1'-(1,2-Diphenylethene-1,2-diyl)bis(4-hydroxybenzene); p,p'-Dihydroxystilbene; Stilbene-4,4'-diol; Bibenol A
EINECS	Contact for details

Quality Control

Our 4,4'-(1,2-Diphenylethene-1,2-Diyl)Diphenol is manufactured under strict quality management systems. Every batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets stringent specifications for research and industrial use. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with each 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 a controlled room temperature (15-25°C). This compound is light-sensitive (store away from light) and easily oxidized (store under inert atmosphere). Keep away from strong oxidizing agents. For long-term storage, consider packaging under an inert gas such as nitrogen or argon.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Melting Point	245 - 250 °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.