1,4-Bis(4-aminophenoxy)benzene (TPE-Q) CAS 3491-12-1

Name: 1,4-Bis(4-aminophenoxy)benzene (TPE-Q) CAS 3491-12-1
Brand: Aure Chemical
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Availability: InStock
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Synonyms: 4,4'-(p-Phenylenedioxy)dianiline; 4,4'-[1,4-Phenylenebis(oxy)]dianiline; Hydroquinone Bis(4-aminophenyl) Ether; 1,4-Bis(p-aminophenoxy)benzene; 1,4-Phenylene-di-4-aminophenyl ether; 4-[4-(4-aminophenoxy)phenoxy]aniline

Shandong Aure Chemical Co., Ltd. is one of the leading suppliers of TPE-Q in China and also one of the suppliers of this product.

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

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Product Details

TPE-Q CAS 3491-12-1 for Polyimide Synthesis

1,4-Bis(4-aminophenoxy)benzene, commonly known as TPE-Q, is an ether-containing aromatic diamine monomer used as a structural building block in high-performance polyimide and specialty polymer synthesis. Its aromatic backbone and flexible phenoxy linkages make TPE-Q relevant to polymer systems where thermal resistance, processability, film-forming behavior and mechanical performance need to be balanced.

TPE-Q belongs to the broader category of polyimide diamine monomers and is also part of Aure Chemical’s polyimide diamine monomers supply portfolio. It is often considered in processable polyimide material design, especially when an aromatic diamine structure with ether linkages is required for solubility, flexibility and polymer processing.

Basic Information of TPE-Q

Product Name	1,4-Bis(4-aminophenoxy)benzene
Abbreviation	TPE-Q
CAS Number	3491-12-1
Product Type	Ether-containing aromatic diamine monomer
Molecular Formula	C18H16N2O2
Molecular Weight	292.33 g/mol
Appearance	Light yellow to off-white powder; available batch result off-white powder
Purity	≥ 99%; available batch result 99.6% by HPLC
Loss on Drying	≤ 0.5%; available batch result 0.2%
Main Application	Processable, heat-resistant and specialty polyimide synthesis
Package	1 kg/bottle, 20 kg/drum, or customized packaging
Documents	COA, SDS and TDS available upon request
Storage	Sealed container; keep dry; store in a cool and dark place
Molecular Structure

Typical Specification of TPE-Q

Item	Standard	Available Batch Result
Appearance	Light yellow to off-white powder	Off-white powder
Purity (HPLC)	≥ 99%	99.6%
Loss on Drying	≤ 0.5%	0.2%
Storage Conditions	Sealed container; keep dry; store in a cool and dark place	Based on available COA reference

The above data is based on an available batch COA for TPE-Q CAS 3491-12-1. Final specifications, batch data and documentation should be confirmed by the latest COA before order confirmation.

Key Features in Polyimide Design

Ether-containing aromatic diamine structure, relevant to processable and specialty polyimide material design.
Phenoxy linkages may help improve chain flexibility, solubility and film-forming behavior depending on the paired dianhydride and polymer formulation.
Aromatic backbone may support thermal resistance and mechanical performance in selected polyimide systems.
TPE-Q can be considered in flexible and processable polyimide formulations where solubility, processing and film properties are important.
Final material properties depend on monomer purity, dianhydride selection, solvent system, imidization conditions and polymer processing method.

Pairing TPE-Q with Dianhydride Monomers

In polyimide synthesis, TPE-Q may be evaluated with selected polyimide dianhydride monomers to design processable, heat-resistant and specialty PI systems. Rigid aromatic dianhydrides such as BPDA CAS 2420-87-3 or BTDA CAS 2421-28-5 may support thermal resistance and dimensional stability.

Ether-containing dianhydrides such as ODPA CAS 1823-59-2 may further support processability and film-forming behavior, while fluorinated dianhydrides such as 6FDA CAS 1107-00-2 may be considered when optical, dielectric or moisture-related properties are part of the target design.

Application Context of TPE-Q in Polyimide Systems

TPE-Q is typically used as a structural diamine monomer rather than a finished application material. It is commonly discussed in processable, heat-resistant and specialty polyimide material development, where aromatic rigidity and ether-linkage flexibility need to be balanced.

Flexible and processable polyimide formulations – solubility, chain flexibility and film formation considerations.
High-temperature polyimide applications – thermal resistance and high-performance polymer environments.
Electronics and semiconductor polyimide applications – insulation, dielectric and film-related material requirements.
Specialty functional polyimide development – aromatic diamine selection for advanced polymer research.

COA, SDS and Technical Documentation

Aure Chemical can provide COA, SDS, TDS, typical specifications and packaging information for TPE-Q CAS 3491-12-1 upon request. Available batch COA shows 99.6% purity by HPLC, loss on drying of 0.2%, and off-white powder appearance under the listed standard.

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 TPE-Q 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.