Description

trans-4,4'-Dinitrostilbene is a high-purity organic compound belonging to the stilbene derivative family, valued for its role as a key synthetic intermediate. Its primary commercial importance lies in its utility for producing optical brighteners, dyes, and advanced functional materials. This product is essential for manufacturers and R&D laboratories in the chemical synthesis, specialty dyes, and polymer industries seeking reliable, high-quality building blocks.

Application

• Optical Brightener (OBA) Synthesis: A crucial precursor in the manufacturing of stilbene-based optical brightening agents used in paper, textiles, and detergents.
• Dye and Pigment Intermediate: Serves as a key building block for synthesizing various azo and other complex dyes and organic pigments.
• Pharmaceutical Research Intermediate: Used in the research and development of novel pharmaceutical compounds and active ingredients.
• Polymer Additive Precursor: Employed in the synthesis of monomers or additives designed to impart specific properties to advanced polymer systems.
• Liquid Crystal and OLED Material Research: Investigated as a core structure in the development of organic electronic materials and liquid crystal displays.
• Cross-coupling Reactions: Utilized in palladium-catalyzed and other cross-coupling reactions to construct more complex conjugated organic molecules.

Basic Information

Product Name	trans-4,4'-Dinitrostilbene
CAS No.	736-31-2
Molecular Formula	C14H10N2O4
Molecular Weight	270.24 g/mol
Synonyms	trans-1,2-Bis(4-nitrophenyl)ethene; (E)-4,4'-Dinitrostilbene; (E)-1,2-Bis(4-nitrophenyl)ethylene; 4,4'-Dinitro-trans-stilbene; Dinitrostilbene; Stilbene, 4,4'-dinitro-, (E)-; NSC 404080
EINECS	Contact for details

Quality Control

Our trans-4,4'-Dinitrostilbene is manufactured under strict quality management protocols. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation, to ensure it meets stringent specifications for use in sensitive synthesis applications. A Certificate of Analysis (COA) detailing all test results is provided with every shipment to guarantee traceability and batch-to-batch consistency.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This material is light-sensitive (store away from light) and easily oxidized (store under inert atmosphere). Keep away from heat, sparks, and open flame. For long-term storage, consider an inert atmosphere (nitrogen or argon) to maintain product integrity.

Specification

Item	Specification
Appearance	Yellow to orange crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Melting Point	298 - 302 °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.