Description

1,2,3,4-Tetramethyl-1,2,3,4-Cyclobutanetetracarboxylic Dianhydride is a high-purity, multifunctional cyclic anhydride monomer of significant interest in advanced polymer synthesis. Its rigid, symmetrical structure and four reactive anhydride groups make it a valuable building block for creating materials with exceptional thermal stability and mechanical properties. This compound is primarily sought by R&D and production teams in the specialty polymers, electronics, and high-performance composites industries.

Application

• Polyimide Precursor: A key monomer for synthesizing high-performance, thermally stable polyimide resins and films used in electronics and aerospace.
• Epoxy Curing Agent & Modifier: Imparts enhanced heat resistance, rigidity, and chemical stability to epoxy resin systems for advanced composites and adhesives.
• Synthesis of Specialty Polyesters & Polyamides: Used to create novel polymers with tailored properties for engineering plastics and coatings.
• Crosslinking Agent: Functions as a crosslinker in polymer formulations to improve network density and thermal performance.
• Pharmaceutical Intermediate: Serves as a sophisticated building block in the synthesis of complex drug molecules and active pharmaceutical ingredients (APIs).
• Liquid Crystal Polymer (LCP) Component: Contributes to the rigid backbone of LCPs used in high-precision molded parts and electronic components.

Basic Information

Product Name	1,2,3,4-Tetramethyl-1,2,3,4-Cyclobutanetetracarboxylic Dianhydride
CAS No.	64198-16-9
Molecular Formula	C12H12O6
Molecular Weight	252.22 g/mol
Synonyms	1,2,3,4-Tetramethylcyclobutane-1,2,3,4-tetracarboxylic dianhydride; Tetramethylcyclobutanetetracarboxylic Dianhydride; TMCBTDA; 1,2,3,4-Tetramethyl-1,2,3,4-cyclobutanetetracarboxylic acid dianhydride; Cyclobutanetetracarboxylic dianhydride, tetramethyl-; 1,2,3,4-Tetramethylcyclobutane-1,2,3,4-tetracarboxylic acid dianhydride
EINECS	Contact for details

Quality Control

Our 1,2,3,4-Tetramethyl-1,2,3,4-Cyclobutanetetracarboxylic Dianhydride is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, NMR, and FTIR, to ensure high purity and consistent performance. Certificates of Analysis (COA) detailing all specifications are provided with every shipment to support your quality assurance and regulatory compliance needs.

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 to prevent degradation by atmospheric moisture.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Heavy Metals	≤ 10 ppm

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