- ▸ Tetrafunctional polyamine curing agent for epoxy resins, providing high crosslink density and chemical resistance
- ▸ Used in epoxy adhesives, coatings and potting compounds where toughness and solvent resistance are needed
- ▸ Acts as a polyamine building block for amine-cured network formation
A grade-specific Safety Data Sheet (SDS) — with the complete hazard classification, handling precautions, and transport information — is supplied with every shipment and available on request. Confirm all safety and regulatory details against the SDS for your specific grade.
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N,N’-Bis(3-aminopropyl)ethylenediamine is a high-functionality aliphatic tetraamine hardener giving dense crosslinking and good chemical resistance in epoxy systems. Identity: CAS 10563-26-5.
What it is
N,N’-Bis(3-aminopropyl)ethylenediamine (CAS 10563-26-5) is a liquid tetraamine with four nitrogen sites and an extended backbone. It combines high functionality with a longer chain than the ethyleneamines.
How it cures
Its amine hydrogens ring-open epoxide groups for a densely crosslinked ambient cure with strong chemical resistance; the propyl spacers add a little flexibility versus ethyleneamines.
Applications
It is used in epoxy coatings, adhesives and chemically resistant systems, and as a chelant/surfactant building block. Compare TETA.
Forms, grades and handling
Supplied as a clear-to-amber liquid in drums, IBCs and bulk. Properties are typical reference values; the Certificate of Analysis (CoA) for the lot you buy governs. Amine curing agents are typically corrosive and can sensitize skin — handle per the current Safety Data Sheet (SDS). Each lot ships with CoA, TDS and SDS.
Bulk supply and RFQ
RawSource sources N,N’-Bis direct from producers in bulk, with CoA, TDS and SDS per lot. Tell us your resin system, cure schedule (ambient or heat) and the properties you need (pot life, Tg, flexibility, chemical resistance), and we will quote the right hardener. See selection logic in the epoxy curing agents guide.
Typical Properties
Typical reference values, not a specification; the Certificate of Analysis (CoA) for the lot governs.
| Property | Typical Value |
|---|---|
| Chemical / class | Aliphatic tetraamine hardener |
| Cure role | Ambient cure (high functionality) |
| CAS Number | 10563-26-5 |
| Molecular Formula | C8H22N4 |
| Molecular Weight | 174.29 g/mol |
| Handling | Refer to the current SDS |
Regulatory & registration requirements
- TSCA (US):
- REACH (EU):
- EC number: 234-147-9
Source: EPA TSCA Inventory (July 2025 release) · ECHA CHEM — retrieved 2026-07-12
Frequently Asked Questions
What is N,N’-bis(3-aminopropyl)ethylenediamine used for?
N,N’-Bis(3-aminopropyl)ethylenediamine (CAS 10563-26-5) is a high-functionality aliphatic tetraamine epoxy hardener for chemically resistant coatings and adhesives, and a building block for chelants and surfactants.
How is bulk this tetraamine hardener supplied and quoted?
RawSource supplies this tetraamine hardener in bulk with CoA, TDS and SDS per lot. Pricing is quote-based on grade and volume; submit an RFQ with your resin system and cure schedule.
What is the REACH and TSCA regulatory status of N,N'-Bis(3-aminopropyl)ethylenediamine?
N,N'-Bis(3-aminopropyl)ethylenediamine (CAS 10563-26-5) is subject to U.S. TSCA Inventory requirements; supplying it into the EU requires valid REACH registration ((EC) No 1907/2006). RawSource cannot verify a third-party supplier's registrations — buyers should require documented TSCA and REACH compliance for their jurisdiction and volume (EC 234-147-9).