Description

1,3-Dimethyl-1,2,3,4-Tetracalboxylic Dianhydride is a high-purity, specialized organic intermediate of significant importance in advanced polymer synthesis. Its core value lies in its rigid, multi-functional structure, which is essential for creating high-performance materials with enhanced thermal and mechanical properties. This compound is primarily needed by manufacturers in the electronics, aerospace, and specialty coatings industries seeking to develop next-generation polyimides and other high-temperature polymers.

Application

• Polyimide Precursor: A key monomer for synthesizing high-performance, heat-resistant polyimide resins and films used in flexible printed circuits (FPCs) and microelectronics.
• Advanced Composite Materials: Serves as a cross-linking agent or curing agent in epoxy and other resin systems to enhance thermal stability for aerospace and automotive components.
• Specialty Coatings: Used in the formulation of high-temperature and corrosion-resistant coatings for industrial and military applications.
• Liquid Crystal Polymers (LCPs): An intermediate in the production of LCPs for connectors, sockets, and other precision molded parts requiring dimensional stability.
• Adhesive & Sealant Formulations: Imparts improved heat resistance and bonding strength in high-performance adhesives for demanding environments.
• Pharmaceutical Intermediate: Potential use as a building block in the synthesis of complex organic molecules and active pharmaceutical ingredients (APIs).
• Research & Development: A valuable reagent for academic and industrial R&D focused on novel polymer architectures and material science.

Basic Information

Product Name	1,3-Dimethyl-1,2,3,4-Tetracalboxylic Dianhydride
CAS No.	15894-21-0
Molecular Formula	C10H6O8
Molecular Weight	254.15 g/mol
Synonyms	1,3-Dimethyl-1,2,3,4-butanetetracarboxylic dianhydride; 1,3-Dimethyl-1,2,3,4-butanetetracarboxylic acid dianhydride; 1,3-Dimethyl-1,2,3,4-tetracarboxybutane dianhydride; DMBD; DMTCDA; 1,2,3,4-Butanetetracarboxylic acid, 1,3-dimethyl-, dianhydride
EINECS	Contact for details

Quality Control

Our 1,3-Dimethyl-1,2,3,4-Tetracalboxylic Dianhydride is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing, including HPLC and titration methods, to ensure high purity and consistent performance. Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are available upon request to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. This product is hygroscopic (moisture-sensitive). Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep the container tightly sealed under an inert atmosphere (e.g., nitrogen or argon) to prevent moisture absorption and degradation.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
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.