Description

4,4''-Dicyanostilbene is an organic chemical compound belonging to the stilbene derivative family, characterized by its conjugated structure with terminal cyano groups. This compound serves as a critical intermediate and building block in advanced material synthesis, valued for its optical and electronic properties. It is essential for manufacturers and R&D laboratories in the fine chemical, pharmaceutical, and specialty polymer sectors seeking high-purity intermediates for innovative applications.

Application

• Key intermediate in the synthesis of optical brightening agents (OBAs) and fluorescent whitening agents for paper, textiles, and plastics.
• Building block for organic light-emitting diodes (OLEDs) and other organic electronic materials due to its conjugated pi-system.
• Precursor in the development of non-linear optical (NLO) materials and photonic devices.
• Research chemical for studying photo-physical properties and energy transfer mechanisms.
• Intermediate in the synthesis of certain pharmaceuticals and agrochemicals requiring a rigid, conjugated backbone.
• Used in the preparation of liquid crystal compounds and advanced polymers.

Basic Information

Product Name	4,4''-Dicyanostilbene
CAS No.	5216-37-5
Molecular Formula	C₁₆H₁₀N₂
Molecular Weight	230.27 g/mol
Synonyms	trans-1,2-Bis(4-cyanophenyl)ethene; 4,4'-Dicyanostilbene; (E)-1,2-Bis(4-cyanophenyl)ethylene; 4,4'-(E)-Ethene-1,2-diylbis(benzonitrile); Stilbene-4,4'-dicarbonitrile; DCS; 4-Cyano-4'-vinylstilbene (related); NSC 403697
EINECS	226-025-7

Quality Control

Our 4,4''-Dicyanostilbene is produced under a strict quality management system. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation, to ensure it meets precise customer specifications. A Certificate of Analysis (COA) detailing all test results is provided with every shipment, ensuring full traceability and compliance with your R&D and production requirements.

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 heat, sparks, and open flame. The compound is light-sensitive and should be handled under appropriate conditions to prevent degradation.

Specification

Item	Specification
Appearance	Yellow to light yellow crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Melting Point	285 - 290 °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.