3,4'-Oxydianiline (3,4'-ODA) CAS 2657-87-6

Name: 3,4'-Oxydianiline (3,4'-ODA) CAS 2657-87-6
Brand: Aure Chemical
Price: 1.00 USD
Availability: InStock
Rating: 5.0 (1 reviews)

Synonyms: 3,4'-Diaminodiphenyl ether; 3,4'-DAPE; 3-(4-Aminophenoxy)aniline

Aure Chemical is a trusted supplier of 3,4'-Oxydianiline in China, supporting global customers with reliable sourcing, quality control, documentation support, and efficient international delivery solutions.

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

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INQUIRY

Product Details

3,4′-ODA CAS 2657-87-6 for Processable Polyimide Synthesis

3,4′-Oxydianiline (3,4′-ODA, CAS 2657-87-6), also known as 3,4′-diaminodiphenyl ether, is an ether-containing aromatic diamine monomer used in polyimide synthesis. Its two amino groups occupy meta and para positions relative to the diphenyl ether linkage, giving an asymmetric structure for polymer design. Aure Chemical supports China sourcing, product specification review, quality documentation, and export coordination for this monomer.

3,4′-ODA belongs to the broader category of polyimide diamine monomers and is also part of Aure Chemical’s polyimide diamine monomers supply portfolio. Its asymmetric geometry and ether linkage can influence chain packing and processing behavior. Polymer solubility, crystallinity, flexibility, and thermal properties depend on the paired dianhydride, molecular weight, formulation, and processing history.

Basic Information of 3,4′-ODA

Product Name	3,4′-Oxydianiline
Abbreviation	3,4′-ODA
CAS Number	2657-87-6
Product Type	Ether-containing asymmetric aromatic diamine monomer
Molecular Formula	C₁₂H₁₂N₂O
Molecular Weight	200.24 g/mol
Appearance	Brown to off-white powder (reported specification)
Purity (HPLC)	≥99.5% (HPLC, reported specification; see reference analysis below)
Main Application	Aromatic diamine building block for polyimide synthesis and formulation development
Package	1 kg/bottle or 20 kg/drum; availability and alternative packaging to be confirmed for each order
Documents	Available SDS and TDS upon request; confirm the applicable specification and request a batch-specific COA before ordering
Storage	Refer to the current SDS and the storage instructions confirmed for the supplied grade and packaging
Molecular Structure

Reference Quality Analysis

The following quality parameters provide a technical reference for evaluating 3,4′-ODA, including powder appearance, HPLC purity, and moisture content. Review the reported purity and moisture limits against the requirements of the intended polyimide synthesis route.

Test Item	Reported Specification	Reference Result
Appearance	Brown to off-white powder	Off-white powder
Purity (HPLC), %	≥99.5	99.95
Moisture, %	≤0.05	0.04

Purity is reported by HPLC. The report does not specify the HPLC procedure, percentage calculation basis, or moisture test method. Trace metal and chloride results are not included; any additional requirements for electronic material applications should be confirmed separately.

These reported specifications and analytical results are provided for preliminary technical evaluation. The reference results apply to one production lot and should not be interpreted as guaranteed values for every shipment. Please contact Aure Chemical to confirm the applicable quality requirements and request the relevant batch-specific Certificate of Analysis (COA) before ordering.

Key Features in Polyimide Design

Ether-containing aromatic diamine structure, relevant to the selection of polyimide diamine monomers for processing and mechanical property studies.
The asymmetric meta/para substitution pattern affects chain geometry and packing. Both amorphous and semicrystalline polyimides have been reported with 3,4′-ODA, depending on the monomer combination and synthesis conditions.
The ether linkage introduces rotational freedom between the aromatic rings, providing a structural variable when balancing chain mobility, film formation, and thermal behavior.
3,4′-ODA can be considered in flexible and processable polyimide systems where polymer solubility, processing conditions, and material toughness are part of the design brief.
Final material properties require evaluation of monomer quality, stoichiometric balance, dianhydride selection, solvent system, imidization conditions, and polymer processing history.

Pairing 3,4′-ODA with Dianhydride Monomers

In polyimide synthesis, 3,4′-ODA may be evaluated with selected polyimide dianhydride monomers to adjust polymer architecture and processing behavior. Ether-containing dianhydrides such as ODPA CAS 1823-59-2 are established comonomers in the development of processable 3,4′-ODA-based polyimides. Processing windows are defined by the complete formulation, molecular weight, and thermal history.

Aromatic dianhydrides such as BPDA CAS 2420-87-3 or BTDA CAS 2421-28-5 provide alternative structures for evaluating thermal and dimensional behavior. Fluorinated dianhydrides such as 6FDA CAS 1107-00-2 may be considered when solubility, optical properties, dielectric behavior, or moisture uptake are part of the design study. These properties should be measured in the resulting polymer.

Application Context of 3,4′-ODA in Polyimide Systems

3,4′-ODA is a structural diamine monomer for developing polyimide resins and films. Its asymmetric aromatic structure and ether linkage can influence polymer morphology and processing response. Application suitability is established through polymer synthesis, formulation, and performance testing.

Flexible and processable polyimide systems – evaluation of polymer solubility, chain mobility, and film processing.
Specialty functional polyimide materials – asymmetric diamine selection for formulation and polymer research.
Electronics and semiconductor polyimide applications – research into insulation and film processing, with trace metal, ionic impurity, and other application-specific requirements confirmed separately.
High-temperature polyimide applications – evaluation of thermal and mechanical performance in the developed polyimide system.

SDS, TDS and Technical Documentation

Aure Chemical coordinates product specification review, supplier documentation, packaging, and international export logistics for 3,4′-ODA CAS 2657-87-6. Available SDS, TDS, and batch-specific COA documentation can be reviewed for the proposed grade. The reference analysis above supports preliminary technical evaluation; confirm the applicable specification and production-lot documentation for the intended order.

Please share the required HPLC purity, moisture limit, any additional impurity requirements, quantity, destination country or port, preferred packaging, and required documents so we can review sourcing feasibility and export arrangements.

Contact Aure Chemical for 3,4′-ODA documentation and quotation support.

Safety, Handling & Documentation

Obtain the current SDS for the grade being supplied before storage, handling, or shipment. Use it to confirm hazard classification, exposure controls, protective equipment, storage conditions, incompatibilities, and transport requirements. Packaging, labeling, and shipping arrangements should be reviewed for the agreed order and destination. The reference COA data on this page does not replace the SDS.