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3,4'-Oxydianiline

3,4'-Oxydianiline structure

CAS No.: 2657-87-6

Chemical Name:: 3,4'-Oxydianiline

Synonyms: 3,4'-ODA;DAPE;3,4'-DPE;JACS-2657-87-6;3,4'-Oxydianiline;3,4'-0xydianiline;3,4'-Diaminodiphenyl;3,4'-Oxybis(aniline);3,4'-DIAMINOPHENYL ETHER;4'-DiaMino diphenylether

CBNumber:: CB0109512

Molecular Formula:: C12H12N2O

Molecular Weight:: 200.24

MDL Number:: MFCD00036097

MOL File:: 2657-87-6.mol

MSDS File:: SDS

TDS File:: TDS

Last updated:2026-04-03 15:34:13

Product description	Number	Pack Size	Price
3,4′-Oxydianiline 97%	476307	10g	$137
3,4'-Diaminodiphenyl Ether >97.0%(GC)(T)	D1924	5g	$56
3,4'-Diaminodiphenyl Ether >97.0%(GC)(T)	D1924	25g	$219
3,4'-Diaminodiphenyl Ether	D416410	100g	$225
3,4'-Diaminodiphenyl Ether	D416410	10g	$110
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3,4'-Oxydianiline Properties

Melting point	67-71 °C(lit.)
Boiling point	206.5 °C1 mm Hg(lit.)
Density	1.1131 (rough estimate)
refractive index	1.6660 (estimate)
storage temp.	Keep in dark place,Inert atmosphere,Room temperature
solubility	Chloroform, Methanol
pka	4.78±0.10(Predicted)
form	Solid
color	Off-White
Stability	Light sensitive
InChI	InChI=1S/C12H12N2O/c13-9-4-6-11(7-5-9)15-12-3-1-2-10(14)8-12/h1-8H,13-14H2
InChIKey	ZBMISJGHVWNWTE-UHFFFAOYSA-N
SMILES	C1(N)=CC=CC(OC2=CC=C(N)C=C2)=C1
CAS DataBase Reference	2657-87-6(CAS DataBase Reference)
UNSPSC Code	12162002
NACRES	NA.23

SAFETY

Risk and Safety Statements

Symbol(GHS)

GHS06,GHS08,GHS09

Signal word

Danger

Hazard statements

H301+H311+H331-H317-H341-H351-H361-H410

Precautionary statements

P201-P273-P280-P301+P310+P330-P302+P352+P312-P304+P340+P311

PPE

dust mask type N95 (US), Eyeshields, Gloves

Hazard Codes

Risk Statements

36/37/38

Safety Statements

26-36

RIDADR

UN2811 - class 6.1 - PG 2 - EHS - Toxic solids, organic, n.o.s., HI: all

WGK Germany

HazardClass

6.1

HS Code

29222990

Storage Class

6.1A - Combustible acute toxic Cat. 1 and 2
very toxic hazardous materials

Hazard Classifications

Acute Tox. 3 Dermal
Acute Tox. 3 Inhalation
Acute Tox. 3 Oral
Aquatic Acute 1
Aquatic Chronic 1
Carc. 2
Muta. 2
Repr. 2
Skin Sens. 1

Limited Quantities

100ml (liquid) or 0.5 Kg (solid)

Excepted Quantities

Max Inner Pack (1g or 1ml) and Max Outer Pack (500g or 500ml)

NFPA 704

	0
2		0

3,4'-Oxydianiline price More Price(23)

Manufacturer	Product number	Product description	CAS number	Packaging	Price	Updated	Buy
Sigma-Aldrich	476307	3,4′-Oxydianiline 97%	2657-87-6	10g	$137	2026-04-30	Buy
TCI Chemical	D1924	3,4'-Diaminodiphenyl Ether >97.0%(GC)(T)	2657-87-6	5g	$56	2026-04-30	Buy
TCI Chemical	D1924	3,4'-Diaminodiphenyl Ether >97.0%(GC)(T)	2657-87-6	25g	$219	2026-04-30	Buy
TRC	D416410	3,4'-Diaminodiphenyl Ether	2657-87-6	100g	$225	2021-12-16	Buy
TRC	D416410	3,4'-Diaminodiphenyl Ether	2657-87-6	10g	$110	2021-12-16	Buy

Product number	Packaging	Price	Buy
476307	10g	$137	Buy
D1924	5g	$56	Buy
D1924	25g	$219	Buy
D416410	100g	$225	Buy
D416410	10g	$110	Buy

3,4'-Oxydianiline Chemical Properties,Uses,Production

Description

3,4'-Oxydianiline (3,4'-ODA) is a phenyl ether derivative capped at both ends with two amines in the para and meta positions. 3,4'-ODA is commonly used in the synthesis of polyimides which have multifunctional properties.3,4'-ODA is transparent and can be used as a substrate for displays. Polyimides are transparent and can be used as substrates for displays. 3,4'-ODA can also be used to synthesise organic porous materials with a BET surface area of up to 351 m2/g. Polyetherimide membranes made from this diamine structural unit show good permeation during water-isopropanol separation.

Uses

3,4''-Diaminodiphenyl Ether, can be used for the synthesis of asymmetric soluble polyimides. It can also be used as a spacer in the preparation of glycine-based molecular tongs as inhibitors of β-amyloid peptide Aβ1-40 aggregation in vitro.

Uses

3,4'-Oxydianiline is an ether organic substance and can be used as a pharmaceutical intermediate.

Application

3,4'-Oxydianiline (3,4'-ODA) is a diphenylamine compound with a purity of up to 99%. It is commonly used as a synthetic raw material, reacting with acid anhydrides to form polyimide films or foams. It is also used in the production of co-p-aramid fibres. Co-p-aramid fibres synthesised using 3,4'-ODA as the sole comonomer exhibit tensile moduli and tensile strengths of 80.4 and 3.1 GPa, respectively. These aramid fibres are widely used in bulletproof vests, optical cables and the aerospace industry.

Materials Uses

The addition of 3,4'-Oxydianiline(3,4′-ODA) significantly alters the microcellular morphology and macroscopic volume stability of polyimide by introducing flexible segments and changing the gas release kinetics during the foaming process.^[2]

Synthesis

22528-34-3

2657-87-6

GENERAL STEPS: The hydrogenation reaction was carried out in a 100 mL reaction flask equipped with an FB generator without additional stirring. 3-Amino-4'-nitrodiphenyl ether (10 mmol) was dissolved in ethyl acetate (80 mL) and subsequently heated to 30 °C. H2-FB was introduced into the reaction system in the presence of palladium alumina spheres (0.5% Pd, 2-4 mm, 0.3 mmol, 3 mol%) using a FB generator (MA3-FS) at a flow rate of 5 mL/min. The reaction progress was monitored by sampling the reaction periodically by GC analysis. Upon completion of the hydrogenation reaction, ethyl acetate was removed by vacuum evaporation to obtain high purity 3,4'-diaminodiphenyl ether.

References

[1] Synlett, 2017, vol. 28, # 16, p. 2184 - 2188
[2] YIN LI. Effects of 3,4′-oxydianiline on the structures and properties of a novel aromatic polyimide foam[J]. Journal of Applied Polymer Science, 2012, 125 5: 4128-4134. DOI:10.1002/app.35683.

3,4'-Oxydianiline synthesis

Synthesis of 3,4'-Oxydianiline from 3-AMINO-4'-NITRODIPHENYL ETHER

3,4'-Oxydianiline Preparation Products And Raw materials

Raw materials

3-AMINO-4'-NITRODIPHENYL ETHER PALLADIUM ON STRONTIUM CARBONATE, REDUCED 4-Iodoaniline ALUMINUM OXIDE N,N-Dimethylformamide

Hydrogen 3-Aminophenol

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Preparation Products

3,4'-Oxydianiline Suppliers

Global( 354)Suppliers

Supplier	Tel	Email	Country	ProdList	Advantage
Sinocey New Materials Technology Co., Ltd.	+86-56321517 +86-13916969686	marketing@sinocey.com	China	5	58
Heynova (Shanghai) New Material Technology CO., Ltd	+86-17821102608	info@heynovachem.com	China	261	58
CHINATECH(TIANJIN) CHEMICAL CO.,LTD.	+86-86-18222270857 +8618222270857	sales5@chinatechem.com	China	75	58
Hebei Chuanghai Biotechnology Co., Ltd	+8615350571055	Sibel@chuanghaibio.com	China	8738	58
Hebei Chuanghai Biotechnology Co,.LTD	+86-86-13131129325 +8613131129325	sales1@chuanghaibio.com	China	5235	58
Hebei Chuanghai Biotechnology Co., Ltd	+8615531151365	mina@chuanghaibio.com	China	18126	58
Henan Bao Enluo International TradeCo.，LTD	+86-17331933971	deasea125996@gmail.com	China	2472	58
Henan Fengda Chemical Co., Ltd	+86-371-86557731 +86-13613820652	info@fdachem.com	China	20124	58
HANGZHOU HAILAN CHEMICAL CO.,LTD.	+86-57156122185 +86-15967590394	sales@hailan-chem.com	China	398	58
Capot Chemical Co.,Ltd.	+86-（0）57185586718; +8613336195806	sales@capot.com	China	29640	60

Supplier	Advantage
Sinocey New Materials Technology Co., Ltd.	58
Heynova (Shanghai) New Material Technology CO., Ltd	58
CHINATECH(TIANJIN) CHEMICAL CO.,LTD.	58
Hebei Chuanghai Biotechnology Co., Ltd	58
Hebei Chuanghai Biotechnology Co,.LTD	58
Hebei Chuanghai Biotechnology Co., Ltd	58
Henan Bao Enluo International TradeCo.，LTD	58
Henan Fengda Chemical Co., Ltd	58
HANGZHOU HAILAN CHEMICAL CO.,LTD.	58
Capot Chemical Co.,Ltd.	60

Related Qustion

Ask a question

Q:What is the use and preparation of 3,4'-Oxydianiline?Zora - Oct 14，2025

A: 3,4'-Oxydianiline is typically used for synthesizing polyimides with multi-functionalities. The preparation of 3,4'-Oxydianiline is as follows:The hydrogenation reaction was carried out in a 100 mL reaction flask equipped with an FB generator without additional stirring. 3-Amino-4'-nitrodiphenyl ether (10 mmol) was dissolved in ethyl acetate (80 mL) and subsequently heated to 30 °C. H2-FB was introduced into the reaction system in the presence of palladium alumina spheres (0.5% Pd, 2-4 mm, 0.3 mmol, 3 mol%) using a FB generator (MA3-FS) at a flow rate of 5 mL/min. Upon completion of the hydrogenation reaction, ethyl acetate was removed by vacuum evaporation to obtain high purity 3,4'-diaminodiphenyl ether.

View Lastest Price from 3,4'-Oxydianiline manufacturers

Update time	Product	Price	Min. Order	Purity	Supply Ability	Manufacturer
2026-05-01	3,4'-Oxydianiline 2657-87-6			0.99		RongNa Biotechnology Co.,Ltd
2026-04-30	3,4'-Oxydianiline 2657-87-6	US $0.00 / KG	1KG	98%min	30tons/month	WUHAN FORTUNA CHEMICAL CO., LTD
2026-04-30	3,4'-Oxydianiline 2657-87-6	US $0.00 / kg	1kg	99%min	20tons	HANGZHOU HAILAN CHEMICAL CO.,LTD.

3,4'-Oxydianiline
2657-87-6
0.99
RongNa Biotechnology Co.,Ltd

3,4'-Oxydianiline
2657-87-6
US $0.00 / KG
98%min
WUHAN FORTUNA CHEMICAL CO., LTD

3,4'-Oxydianiline
2657-87-6
US $0.00 / kg
99%min
HANGZHOU HAILAN CHEMICAL CO.,LTD.

3,4'-Oxydianiline Spectrum

3,4'-Oxydianiline(2657-87-6)MS 3,4'-Oxydianiline(2657-87-6)¹HNMR 3,4'-Oxydianiline(2657-87-6)¹³CNMR 3,4'-Oxydianiline(2657-87-6)IR1 3,4'-Oxydianiline(2657-87-6)IR2

2657-87-6(3,4'-Oxydianiline)Related Search:

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4-(3-AMINO-PHENOXY)-PHENYLAMINE 3,4'-DPE 3,4'-DIAMINOPHENYL ETHER 3-(4-aminophenoxy)aniline 3,4'-Oxydianiline(3,4'-ODA) 3,4'-DiaminodiphenylEther>99.0% 3,4-DIAMINODIPHENYL ETHER (3,4-DAPE) 3,4'-Diaminodiphenyl 3,4''-DIAMINODIPHENYL ETHER / 3,4''-OXYDIANILINE 3,4''-DIAMINODIPHENYL ETHER 97+% 3,4''-OXYDIANILINE (3,4''-DIAMINODIPHENYLETHER) 3-(4-aminophenoxy)aniline,3,4'-Oxydianiline 3,4'-Oxybis(aniline) 4-(3-Aminophenoxy)aniline p-(m-Aminophenoxy)aniline 3,4'-Oxydianiline [3-(4-aminophenoxy)phenyl]amine 3-(4-azanylphenoxy)aniline 3,4'-Diaminodiphenyl Ether ,99% 4'-DiaMino diphenylether 3,4'-Diaminodiphenyl Ether (3,4-ODA) JACS-2657-87-6 3,4'-DiaminodiphenylEther> DAPE Benzenamine, 3-(4-aminophenoxy)- 3,4'-Oxydianiline Manufacturer CAS NO.2657-87-6 3,4'-Oxydianiline(3,4'-ODA 3,4'-Diaminodiphenyl ether 3,4'-0xydianiline 3,4'-Diaminodiphenyl Ether (3,4'-ODA) 3,4′-Diaminodiphenyl ether, CAS 2657-87-6 3,4'-Oxydianiline (3,4'-ODA) - 99.5 Purity 3,4'-Oxydianiline (3,4'-ODA) - 99.95 Purity 3,4'-ODA 2657-87-6 Diphenyl Ethers (for High-Performance Polymer Research) Reagent for High-Performance Polymer Research Monomers Primary Amines Biphenyl & Diphenyl ether Amines Miscellaneous Diphenyl Ethers (for High-Performance Polymer Research) Functional Materials Reagent for High-Performance Polymer Research Amine Monomers 2657-87-6 PI