Description

cis-5-Norbornene-Exo-2,3-Dicarboxylic Anhydride is a versatile bicyclic anhydride monomer prized for its unique reactivity and rigid molecular structure. This compound is a critical building block for creating high-performance polymers with exceptional thermal stability, chemical resistance, and mechanical properties. It is essential for R&D chemists and production engineers in the advanced materials, specialty chemicals, and pharmaceutical intermediates sectors seeking to develop innovative products with enhanced performance characteristics.

Application

• Epoxy Resin Curing Agent & Modifier: Imparts high heat resistance, low shrinkage, and excellent adhesion in advanced composite materials and electronic encapsulants.
• Polyimide & Polyamide Synthesis: Serves as a key monomer for producing high-temperature resistant polymers used in aerospace, flexible electronics, and specialty films.
• Pharmaceutical Intermediate: Utilized in the synthesis of complex drug molecules and active pharmaceutical ingredients (APIs) due to its reactive anhydride functionality.
• Crosslinking Agent for Polymers: Enhances the thermal and mechanical properties of coatings, adhesives, and elastomers.
• Organic Synthesis Reagent: Acts as a dienophile in Diels-Alder reactions and a precursor for synthesizing dicarboxylic acids and their derivatives.
• Liquid Crystal Polymer (LCP) Monomer: Contributes to the rigid backbone structure of LCPs for high-performance engineering plastics.

Basic Information

Product Name	cis-5-Norbornene-Exo-2,3-Dicarboxylic Anhydride
CAS No.	2746-19-2
Molecular Formula	C9H8O3
Molecular Weight	164.16 g/mol
Synonyms	5-Norbornene-2,3-dicarboxylic Anhydride, endo-; Bicyclo[2.2.1]hept-5-ene-2,3-dicarboxylic Anhydride; cis-endo-5-Norbornene-2,3-dicarboxylic Anhydride; Nadic Anhydride (technical grade mixture); 3a,4,7,7a-Tetrahydro-4,7-methanoisobenzofuran-1,3-dione; 5-Norbornene-2,3-dicarboxylic Acid Anhydride; endo-cis-Bicyclo[2.2.1]hept-5-ene-2,3-dicarboxylic Anhydride
EINECS	220-386-3

Quality Control

Our cis-5-Norbornene-Exo-2,3-Dicarboxylic Anhydride is manufactured under strict quality management protocols. Each batch undergoes rigorous analytical testing to ensure high purity and consistent performance, meeting the stringent requirements for advanced polymer and pharmaceutical synthesis. Comprehensive Certificates of Analysis (COA) with detailed chromatographic and spectroscopic data are provided to guarantee traceability and compliance with your specifications.

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). This product is hygroscopic (moisture-sensitive). Keep the container tightly sealed under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent moisture absorption and degradation.

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%
Heavy Metals (as Pb)	≤ 10 ppm

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