1,2,3,4-Cyclobutanetetracarboxylic1,2,3,4-dianhydride CBDA CAS 4415-87-6

Name: 1,2,3,4-Cyclobutanetetracarboxylic1,2,3,4-dianhydride CBDA CAS 4415-87-6
Brand: Aure Chemical
Price: 1.00 USD
Availability: InStock
Rating: 5.0 (1 reviews)

Synonyms: Cyclobutane-1,2,3,4-tetracarboxylic dianhydride; 1,2,3,4-Cyclobutanetetracarboxylic dianhydride; Cyclobutanetetracarboxylic acid dianhydride; Tetrahydrocyclobuta[1,2-c:3,4-c′]difuran-1,3,4,6-tetrone; Maleic anhydride cyclic dimer

Shandong Aure Chemical Co., Ltd. is one of the leading suppliers of CBDA in China and also one of the manufacturers of this product.

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Product Details

Explore Top-Quality CBDA with Aure Chemical

1,2,3,4-Cyclobutanetetracarboxylic dianhydride (CBDA, CAS 4415-87-6) is a cycloaliphatic dianhydride monomer widely used in the synthesis of transparent, low-dielectric, and low-color polyimides. Owing to its compact alicyclic structure, CBDA-based polymers effectively suppress intermolecular charge-transfer interactions, delivering excellent optical transparency, low dielectric constant, reduced photo-darkening, and balanced thermal and mechanical performance for advanced electronic and optical applications.

Basic Information of CBDA

Product Name	1,2,3,4-Cyclobutanetetracarboxylic dianhydride
Abbreviation	CBDA
CAS Number	4415-87-6
Molecular Formula	C8H4O6
Molecular Weight	196.11 g/mol
Appearance	White to light yellow powder or crystal
Purity	≥99%
Package	1kg/bottle, 20kg/drum, or customized
Molecular Structure

Key Properties

Compact cycloaliphatic structure enables excellent optical transparency and low intrinsic coloration
Low dielectric constant suitable for high-frequency and high-speed electronic materials
Reduced photo-darkening (PD) effect compared with aromatic dianhydrides
Balanced thermal stability and mechanical strength for advanced polymer systems
Improves flexibility and processability in polyimide backbones

Key Applications of CBDA

Electronics and Microelectronics: Used in low-dielectric polyimide films for high-frequency circuit substrates, semiconductor packaging, electronic coatings, and advanced insulating layers. CBDA-based polyimides support high-speed and low-loss electronic systems due to their dielectric stability and thermal reliability.

Optical and Transparent Polyimide Systems: A key monomer for transparent and low-color polyimides used in optical films, waveguides, photonic devices, and optoelectronic substrates. Learn more about dianhydrides for optical and transparent polyimide systems .

Flexible Films, CPI, and Coatings: Widely applied in colorless polyimide (CPI) films for flexible OLED displays, foldable devices, wearable electronics, and transparent protective coatings. CBDA contributes to flexible and transparent polyimide film systems requiring mechanical compliance and optical clarity.

Energy and Separation Technologies: CBDA can be used in functional polyimide membranes for gas separation and electrochemical systems, where low dielectric constant and optical clarity are beneficial. Learn more about polyimide dianhydrides for energy storage and separation applications

Aerospace and Advanced Engineering (Non-Structural): Incorporated into lightweight dielectric layers, transparent insulation films, and specialty coatings for aerospace and high-reliability engineering environments where optical transparency and thermal stability are required.

Research and Functional Materials: Serves as a versatile building block for functional poly(amic acid) systems, specialty polymers, and advanced materials research.

Packaging, Logistics & Compliance Capabilities

Aure Chemical provides flexible packaging solutions, compliant logistics arrangements, and controlled storage practices to support laboratory-scale, pilot-scale, and commercial-scale global supply.