4,4'-Diaminodiphenyl ether
CAS 101-80-4
EC 202-977-0
Formula C12H12N2O
MW 200.24 g/mol
Monomers & Building Blocks Personal Care & CosmeticsPlastics & PolymersPrinting & Packaging Cross-linking & CuringPolymerization InitiationFoam Control
Description
4,4'-Diaminodiphenyl ether (CAS 101-80-4, EC 202-977-0) is an aromatic diamine monomer commercially known as 4,4'-ODA, 4,4'-DADPE, and 4,4'-Oxydianiline, with the molecular formula C12H12N2O. It carries no assigned E-code and is classified under HS code 29222900 within the amines category.
In polyimide and polyamide synthesis, 4,4'-ODA reacts with dianhydrides or diacid chlorides to form high-performance polymer chains, where its ether linkage introduces chain flexibility while preserving thermal stability. It also functions as a curing agent and cross-linker in epoxy systems, reacting with epoxide groups to build thermoset networks with controlled mechanical properties.
4,4'-ODA is supplied as a white crystalline solid or beige powder and is subject to REACH registration requirements within the EU. Procurement teams should verify supplier REACH compliance documentation and SDS before ordering, as the substance is subject to ongoing regulatory scrutiny under SVHC candidate list evaluations.
In polyimide and polyamide synthesis, 4,4'-ODA reacts with dianhydrides or diacid chlorides to form high-performance polymer chains, where its ether linkage introduces chain flexibility while preserving thermal stability. It also functions as a curing agent and cross-linker in epoxy systems, reacting with epoxide groups to build thermoset networks with controlled mechanical properties.
4,4'-ODA is supplied as a white crystalline solid or beige powder and is subject to REACH registration requirements within the EU. Procurement teams should verify supplier REACH compliance documentation and SDS before ordering, as the substance is subject to ongoing regulatory scrutiny under SVHC candidate list evaluations.
Physical Properties
| Melting Point | 186-187 °C |
| Boiling Point | >300 °C |
| Density | 1.417 g/cm³ |
| Flash Point | 426 °F |
| Appearance | 4,40′-Oxydianiline is a white crystalline solid, or a beige powder. |
| Color | White |
| Form | Solid |
| Water Solubility | Insoluble. <0.01 g/100 mL at 15 ºC |
| Vapor Pressure | 10 mm Hg ( 240 °C) |
| Refractive Index | 1.6660 (estimate) |
| Log P | 0.72 at 20℃ |
Safety & Handling (Learn More)
Danger GHS06 GHS08 GHS09 GHS07
H
H301H302H311H317H331H340H341H350H351H361H372H373H400H410H411
P
P203P260P261P262P264P270P271P272P273P280P316P318P319P321P330P391P405P501P301+P316P301+P317P302+P352P304+P340P333+P317P361+P364P362+P364P403+P233
Trade & Regulatory
| HS Code | 29222900 |
| UN Number | 3077 |
| ADR Class | 9 |
| Packing Group | III |
| Storage Class | 6.1C - Combustible acute toxic Cat.3 toxic compounds or compounds which causing chronic effects |
| WGK (Germany) | 3 |
Other Names
4-(4-aminophenoxy)aniline4-Aminophenyl etherdiaminodiphenyl etherODA4,4'-DPE4,4'-ODA4,4'-DADPE4,4-OXYDIANILINE
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Raw Materials
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