4,4'-Oxydiphthalic anhydride (ODPA) CAS 1823-59-2

Name: 4,4'-Oxydiphthalic anhydride (ODPA) CAS 1823-59-2
Brand: Aure Chemical
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Synonyms: s-ODPA; 4,4'-Oxydiphthalic dianhydride; Bis-(3-phthalyl anhydride) ether; 4,4'-Oxybis(phthalic anhydride); 5,5'-Oxybis[1,3-isobenzofurandione]; 3,3',4,4'-Diphenyl ether tetracarboxylic acid dianhydride; 3,3',4,4'-Diphenyl oxide tetracarboxylic dianhydride; 1,3-Isobenzofurandione, 5,5'-oxybis-

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

We can provide customized requirements in terms of product purity, packaging specifications, and other aspects.

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Product Details

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4,4'-Oxydiphthalic anhydride (ODPA, CAS 1823-59-2) is an aromatic dianhydride primarily used as a monomer in the synthesis of high-performance polyimides, epoxy resins, and other polymers, offering excellent thermal stability, solvent resistance, chemical resistance, mechanical strength, and electrical properties.

Basic Information of ODPA

Product Name	4,4'-Oxydiphthalic anhydride
Abbreviation	ODPA
CAS Number	1823-59-2
Molecular Formula	C16H6O7
Molecular Weight	310.21 g/mol
Appearance	White to Light yellow to light orange powder to crystal
Purity	≥99.5%
Package	1kg/bottle, 20kg/drum, or customized
Molecular formula

Key Properties

High thermal stability and chemical resistance
Used as a monomer for high-performance polyimide materials
Good chemical inertness in polyimide-derived films
Suitable for high-temperature and aerospace applications

Key Applications of ODPA

Electronics and Microelectronics: Employed in polyimide films for flexible copper clad laminates (FCCL), insulating materials, and high-conductivity nanohybrid films for electronic components.

Energy Storage: Utilized in polyimides for separators in supercapacitors and anodes in lithium-ion batteries, due to its electrolyte compatibility and performance under high temperatures.

Composites and Materials: Incorporated into composite materials, foams, molded parts, and films for enhanced durability and heat resistance in industrial applications.

Adhesives and Resins: Applied in epoxy resins (e.g., bisphenol A-type and novolac-type) and adhesives for bonding in high-performance settings, as well as in polyamide materials.

Detailed COA / TDS / MSDS are available upon request. Please Contact Us for more information.

Packaging, Transportation & Storage

Aure Chemical ensures that all products are handled in compliance with international safety and quality standards. Each product’s SDS should be consulted for detailed requirements.

Packaging

We use certified UN-rated containers suitable for each chemical type — including steel drums, HDPE drums, IBCs, and ISO tank containers for bulk liquids. All packages are tested for integrity and labeled per IMDG / IATA / ADR standards.

Transportation

Shipments comply with IMDG, IATA, and ADR codes to ensure safe and lawful movement by sea, air, or land. Accompanying documents include SDS, Dangerous Goods Declarations, and COAs.

Storage

Products should be stored in well-ventilated, dry areas, away from heat and incompatible substances. Follow ISO 9001 / 14001 principles for safety, labeling, and periodic inspection.

For detailed handling or customized packaging inquiries, please contact us.

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