Description

4,4'-Stilbenedicarboxylic Acid is a high-purity organic compound belonging to the class of dicarboxylic acids featuring a central stilbene core. This specific molecular architecture makes it a valuable building block (monomer) and intermediate in advanced polymer synthesis and specialty chemical manufacturing. It is primarily sought after by R&D laboratories, pharmaceutical developers, and manufacturers of high-performance polymers and liquid crystal materials for its rigid, conjugated structure.

Application

• Polymer Chemistry: Serves as a key monomer for synthesizing polyesters, polyamides, and other high-performance polymers requiring thermal stability and mechanical strength.
• Liquid Crystal & OLED Materials: Used as a precursor or intermediate in the production of organic semiconductors, liquid crystal displays (LCDs), and organic light-emitting diodes (OLEDs) due to its conjugated, rigid-rod structure.
• Pharmaceutical Intermediates: Acts as a critical building block in the research and synthesis of novel active pharmaceutical ingredients (APIs) and diagnostic agents.
• Crosslinking Agent: Employed in the formulation of coatings, adhesives, and resins to enhance network density and material properties.
• Organic Synthesis & Research: A versatile intermediate for constructing complex organic molecules in academic and industrial research settings.
• Dye & Pigment Manufacturing: Used in the synthesis of specialized dyes and optical brighteners.

Basic Information

Product Name	4,4'-Stilbenedicarboxylic Acid
CAS No.	74299-91-5
Molecular Formula	C16H12O4
Molecular Weight	268.26 g/mol
Synonyms	trans-4,4'-Stilbenedicarboxylic Acid; 4,4'-(E)-Ethene-1,2-diyl)dibenzoic Acid; (E)-4,4'-(Ethene-1,2-diyl)dibenzoic Acid; 4,4'-Vinylenedibenzoic Acid; p,p'-Stilbenedicarboxylic Acid; 1,1'-(1,2-Ethenediyl)bis[4-carboxybenzene]; Bibenzoic acid, 4,4'-vinylenedi-; (E)-4,4'-(1,2-Ethenediyl)bis[benzoic acid]
EINECS	Contact for details

Quality Control

Our 4,4'-Stilbenedicarboxylic Acid is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing to ensure identity, purity, and consistency. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing key parameters such as assay, impurity profile, and physical characteristics. Our quality commitment supports applications requiring high-purity standards in research and industrial synthesis.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at controlled room temperature (typically 15-25°C). Keep away from strong oxidizing agents and strong bases. For long-term storage, consider an inert atmosphere to maintain product integrity.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Heavy Metals	≤ 20 ppm
Residue on Ignition	≤ 0.1%

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