Bisphenol a diethyl dianhydride (BPADA) CAS 38103-06-9

Name: Bisphenol a diethyl dianhydride (BPADA) CAS 38103-06-9
Brand: Aure Chemical
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Synonyms: 4,4'-Bisphenol A dianhydride; 4,4'-Bisphenol A diphthalic anhydride; Ultem dianhydride; 4,4'-(4,4'-Isopropylidenediphenoxy)bis(phthalic anhydride); 4,4'-(4,4'-Isopropylidenediphenoxy)diphthalic anhydride; 2,2-Bis[4-(3,4-dicarboxyphenoxy)phenyl]propane dianhydride

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

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Product Details

BPADA CAS 38103-06-9 for Processable Polyimide and Polyetherimide Synthesis

Bisphenol A dianhydride, commonly known as BPADA, is an bisphenol-A-based aromatic dianhydride monomer used as a structural building block in processable polyimide, polyetherimide and specialty polymer synthesis. Its bulky isopropylidene structure and ether-linked aromatic framework make BPADA relevant to polymer systems where solubility, processability, film-forming behavior, dielectric properties and balanced thermal performance need to be considered.

BPADA belongs to the broader category of polyimide dianhydride monomers and is also included in Aure Chemical’s Polyimide Monomers: Diamines and Dianhydrides technical guide. It is often considered in processing-oriented, flexible, optical, electronic-grade and specialty polyimide material development, depending on the paired diamine, formulation and processing conditions.

Basic Information of BPADA

Product Name	Bisphenol A dianhydride
Abbreviation	BPADA
CAS Number	38103-06-9
Product Type	Bisphenol-A-based aromatic dianhydride monomer
Molecular Formula	C31H20O8
Molecular Weight	520.49 g/mol
Appearance	White to light yellow powder or crystal
Purity	≥ 99%; batch data should be confirmed when quality documentation is available
Main Application	Processable, flexible and specialty polyimide or polyetherimide 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

Bisphenol-A-based aromatic dianhydride structure, relevant to processable and flexible polyimide dianhydride monomers.
Bulky isopropylidene structure may help reduce close molecular packing and improve solubility depending on the paired diamine and polymer architecture.
Ether-linked aromatic framework may support processability, film-forming behavior and balanced mechanical performance in selected polyimide and polyetherimide systems.
BPADA can be considered in flexible films, coatings and adhesives where processing behavior, flexibility and polymer toughness are important.
Final material properties depend on dianhydride purity, diamine selection, solvent system, imidization conditions, film formation and polymer processing method.

Pairing BPADA with Diamine Monomers

In polyimide synthesis, BPADA may be evaluated with selected monomers from Aure Chemical’s polyimide diamine monomers supply portfolio to design processable, flexible and specialty PI systems. Ether-containing diamines such as BAPP CAS 13080-86-9 or TPE-Q CAS 3491-12-1 may help adjust solubility, chain flexibility and film-forming behavior.

Fluorinated diamines such as TFMB / TFDB CAS 341-58-2 may be considered when optical clarity, dielectric behavior or moisture-related properties are part of the target polymer design, while rigid aromatic diamines may be selected when dimensional stability and thermal resistance are more important.

Application Context of BPADA in Polyimide Systems

BPADA is typically used as a structural dianhydride monomer rather than a finished application material. It is commonly discussed in processing-oriented, flexible, optical and electronic-grade polyimide or polyetherimide material development, where bulky bisphenol-based structure can influence solubility, polymer morphology, dielectric behavior and processing performance.

Flexible films, coatings and adhesives – processable and flexible PI material systems.
Optical and transparent polyimide systems – monomer selection for reduced coloration, optical clarity and film-related polymer design.
Electronics and microelectronics polyimide applications – dielectric, insulation and electronic material requirements.
Specialty functional polyimide materials – bisphenol-based dianhydride selection for advanced polymer research and formulation design.

SDS, TDS and Technical Documentation

Aure Chemical can provide SDS, TDS, typical product information and packaging details for BPADA CAS 38103-06-9 upon request. Since no batch COA has been provided for this page, final purity, appearance and batch-specific quality data should be confirmed when available before order confirmation.

Please share the required purity, target specification, quantity, destination country or port, preferred packaging method and required documents so we can review availability, documentation support and export packing options.

Contact Aure Chemical for BPADA documentation and quotation support.

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.