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Product Code B2031-25g
Price $113 ex. VAT

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An asymmetrical diamine building block

As intermediate for the preparation of polyimides in application of transparent substrates, organic porous materials, and pervaporation membranes


3,4'-Oxydianiline (3,4'-ODA) is a phenyl ether derivative capped with two amines at para- and meta-position on either end. 3,4'-Oxydianiline is typically used for synthesizing polyimides with multi-functionalities. Due to the meta-substituted amine hindering the intermolecular packing, the polyimides are transparent. Therefore, they are applied as substrates in displays. The high thermal stability (210 °C) allows these polyimides to be used as substrates for sintering integrated devices.

3,4'-ODA is also used in synthesizing organic porous materials with BET surface area up to 351 m2/g. The polyetherimide membranes obtained from this diamine building block show effectiveness on pervaporation for water-isopropanol separation.

General Information

CAS Number 2657-87-6
Chemical Formula C12H12N2O
Full Name 3-(4-Aminophenoxy)aniline
Molecular Weight 200.24 g/mol
Synonyms 3,4′-DAPE, 3,4′-diaminodiphenyl ether, 3,4′-oxydiphenylamine, 3-(4-aminophenoxy)aniline
Classification / Family Diamine building block, Transparent substrate, Polyimides, Pervaporation membranes

Chemical Structure

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

Product Details

Purity >99%
Melting Point Tm = 61 °C – 67 °C
Appearance Pale yellow to reddish yellow powder/crystal

MSDS Documentation

3,4'-Oxydianiline (3,4'-ODA)3,4'-Oxydianiline (3,4'-ODA) MSDS Sheet

Literature and Reviews

  1. Comparison of properties of colorless and transparent polyimide films using various diamine monomers, H. Jeon et al, Rev. Adv. Mater. Sci., 62, 394-404(2022); DOI: 10.1515/rams-2022-0044.
  2. Fabrication of gold-doped crystalline-silicon nanomembrane-based wearable temperature sensor, K. Kang et al., STAR protocols, 4(1), 101925(2023); DOI: 10.1016/j.xpro.2022.101925.
  3. Solid-state thermal rectification of bilayers by asymmetric elastic modulus, J. Lee et al., Mater. Horiz., 10, 1431-1439(2023), DOI: 10.1039/d2mh01550a.
  4. Synthesis and characterization of benzene- and triazine-based azobridged porous organic polymers, B. Panić et al., Polymers, 15, 229(2023); DOI: 10.3390/
    polym15010229.
  5. Synthesis of aromatic polyimides based on 3,4'-oxydianiline by one-pot polycondensation in molten benzoic acid and their application as membrane materials for pervaporation, A. Soldatova et al., Materials, 15, 6845(2022); DOI: 10.3390/ma15196845.
  6. Tailoring poly(styrene-co-maleic anhydride) networks for all-polymer dielectrics exhibiting ultrahigh energy density and charge-discharge efficiency at elevated temperatures, Z. Pan et al., Adv. Mater., 35(1), 2207580(2022); DOI: 10.1002/adma.202207580.
  7. Thermal shape morphing of membrane-type electronics based on plastic-elastomer frameworks for 3D electronics with various Gaussian curvatures, Mater. Des., 227, 111811(2023); DOI: 10.1016/j.matdes.2023.111811.

To the best of our knowledge the information provided here is accurate. The values provided are typical at the time of manufacture and may vary over time and from batch to batch. Products may have minor cosmetic differences (e.g. to the branding) compared to the photos on our website. All products are for laboratory and research and development use only.

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