Description

Bicyclo[2.2.2]Oct-7-Ene-2,3,5,6-Tetracarboxylic Acid Dianhydride is a high-purity, multifunctional organic building block characterized by its rigid bicyclic core and four reactive anhydride groups. This compound matters for its exceptional ability to impart high thermal stability, mechanical strength, and cross-linking density into advanced polymeric materials. It is primarily needed by R&D chemists and manufacturers in the high-performance polymer, epoxy curing agent, and polyimide resin sectors, where it serves as a critical precursor for heat-resistant coatings, adhesives, and electronic encapsulants.

Application

• Polyimide Monomer: A key precursor for the synthesis of high-temperature, transparent polyimide films used in flexible displays and advanced optoelectronics.
• Epoxy Curing Agent/Hardener: Imparts superior thermal resistance, chemical stability, and low dielectric constant to epoxy systems for semiconductor encapsulation and aerospace composites.
• Cross-linking Agent: Used to create highly cross-linked, three-dimensional polymer networks for coatings and adhesives requiring extreme durability.
• Pharmaceutical Intermediate: Serves as a sophisticated scaffold in the synthesis of complex active pharmaceutical ingredients (APIs) and drug delivery systems.
• Liquid Crystal Polymer (LCP) Synthesis: Contributes to the rigid backbone of LCPs, enhancing their thermal and mechanical properties for precision molded components.
• Organic Synthesis Building Block: Utilized in academic and industrial research to construct complex molecular architectures due to its multiple, symmetrically arranged reactive sites.

Basic Information

Product Name	Bicyclo[2.2.2]Oct-7-Ene-2,3,5,6-Tetracarboxylic Acid Dianhydride
CAS No.	1719-83-1
Molecular Formula	C12H6O6
Molecular Weight	246.17 g/mol
Synonyms	Bicyclo[2.2.2]oct-7-ene-2,3,5,6-tetracarboxylic dianhydride; BTA; BTAH; 2,3,5,6-Bicyclo[2.2.2]oct-7-ene tetracarboxylic dianhydride; 7-Oxabicyclo[2.2.1]heptane-2,3,5,6-tetracarboxylic dianhydride (common misnomer); Bicyclo[2.2.2]oct-7-ene-2,3,5,6-tetracarboxylic acid dianhydride; BOTDA; BCDA
EINECS	217-009-3

Quality Control

Our Bicyclo[2.2.2]Oct-7-Ene-2,3,5,6-Tetracarboxylic Acid Dianhydride is manufactured under stringent quality management systems. Every batch undergoes rigorous analytical testing to ensure compliance with high-purity chemical standards. Key parameters including purity, moisture content, and melting point are verified. A comprehensive Certificate of Analysis (COA) detailing all test results is provided with each shipment to guarantee traceability and consistency for your critical applications.

Storage

Preserve in a tightly closed container, protected from light. Due to its hygroscopic nature, this material must be stored in a cool, dry place under an inert atmosphere (e.g., nitrogen or argon) to prevent moisture absorption and hydrolysis of the anhydride groups. Recommended long-term storage temperature is 2-8°C. The storage area should be well-ventilated and separate from strong bases.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	285 - 295 °C
Loss on Drying	≤ 0.5%
Heavy Metals (as Pb)	≤ 10 ppm
Residue on Ignition	≤ 0.1%

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