1,2,3,4-Cyclobutanetetracarboxylic1,2,3,4-dianhydride CBDA

Basic Information of CBDA

Product Name	1,2,3,4-Cyclobutanetetracarboxylic dianhydride
Abbreviation	CBDA
CAS Number	4415-87-6
Product Type	Cycloaliphatic dianhydride monomer
Molecular Formula	C8H4O6
Molecular Weight	196.11 g/mol
Appearance	White to light yellow powder or crystal
Purity	≥ 99%; batch data should be confirmed when quality documentation is available
Main Application	Transparent, low-color and low-dielectric polyimide synthesis
Package	1 kg/bottle, 20 kg/drum, or customized packaging
Documents	SDS, TDS and available product information upon request
Storage	Keep sealed, dry, and away from moisture
Molecular Structure

Key Features in Polyimide Design

• Cycloaliphatic dianhydride structure, relevant to transparent and low-color polyimide dianhydride monomers.

• Compact alicyclic structure may help reduce charge-transfer interactions and support optical clarity depending on the paired diamine and polymer architecture.

• Non-aromatic dianhydride design may be considered when low coloration, dielectric behavior and transparent film performance are part of the target material design.

• CBDA can be considered in optical and transparent polyimide systems where reduced coloration and optical clarity are important.

• Final material properties depend on dianhydride purity, diamine selection, solvent system, imidization conditions, film formation and polymer processing method.

Pairing CBDA with Diamine Monomers

Ether-containing diamines such as BAPP CAS 13080-86-9 or TPE-Q CAS 3491-12-1 may help adjust solubility, flexibility and film-forming behavior, while rigid aromatic diamines may be selected when dimensional stability and mechanical strength are more important.

Application Context of CBDA in Polyimide Systems

CBDA is typically used as a structural dianhydride monomer rather than a finished application material. It is commonly discussed in transparent, low-color, low-dielectric and flexible polyimide material development, where alicyclic dianhydride structure can influence optical properties, charge-transfer behavior and polymer morphology.

• Optical and transparent polyimide systems – monomer selection for reduced coloration, optical clarity and transparent film design.

• Electronics and microelectronics polyimide applications – low-dielectric, insulation and electronic material requirements.

• Flexible films, coatings and adhesives – flexible, transparent and processable PI material systems.

• Energy storage and separation applications – functional polymer and membrane-related research contexts.

• Specialty functional polyimide materials – alicyclic dianhydride selection for advanced polymer research and formulation design.

Related Polyimide Monomer Supply Guides

For a broader technical overview of both diamine and dianhydride monomer families, please review Polyimide Monomers: Diamines and Dianhydrides.

Related Polyimide Monomers

• 6FDA CAS 1107-00-2 – fluorinated dianhydride often considered in transparent and low-dielectric PI systems.

• TFMB / TFDB CAS 341-58-2 – fluorinated diamine for transparent, low-dielectric and high-performance PI systems.

• TPE-Q CAS 3491-12-1 – ether-containing aromatic diamine for processable and heat-resistant PI material design.

SDS, TDS and Technical Documentation

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