- ▸ Epoxy crosslinker: Trifunctional hardener that builds crosslinked networks.
- ▸ Polyurea/polyurethane: Trifunctional amine for elastomers and coatings.
- ▸ Composites: Curing agent for fiber-reinforced systems.
- ▸ Adhesives & sealants: Network-forming reactive amine.
Supplied for industrial formulation and manufacturing use; not for retail or consumer sale.
- ▸ Polyoxypropylenetriamine, Mn ≈ 440 (RS-T403) Technical Data Sheet, 2 pages, issued October 2026 PDF · TDS
- ▸ Polyoxypropylenetriamine (Trifunctional Polyether Triamine) Typical Certificate of Analysis (RS-T403) PDF · COA
Values shown are typical for the current commercial grade. A lot-specific Certificate of Analysis accompanies every shipment; the grade-specific SDS is available on request.
GHS05
GHS07
GHS09
- H302 Harmful if swallowed
- H312 Harmful in contact with skin
- H318 Causes serious eye damage
- H411 Toxic to aquatic life with long lasting effects
Source: Supplier SDS, Section 2, by grade: RS-T403 Danger (H302, H312, H318, H411)
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.
Request SDS →Polyoxypropylenetriamine is a trifunctional, amine-terminated polyether triamine based on a propylene-oxide backbone; the grade number tracks approximate average molecular weight. It is a lower-molecular-weight crosslinker whose three reactive amine ends act as a crosslinking epoxy curing agent and network former. Established applications are in polyurea and polyurethane elastomers, composites, coatings, adhesives and sealants.
Regulatory & registration requirements
- TSCA (US):
- REACH (EU):
- EC number: 500-105-6
TSCA Inventory flag XU: a substance exempt from reporting under the Chemical Data Reporting Rule (40 CFR 711) (EPA flag legend).
Source: EPA TSCA Inventory (July 2025 release) · ECHA CHEM — retrieved 2026-07-12
Solutions Using This Product
Process-solution guides on this site that specify this chemistry:
- Epoxy Hardeners & Amine Curing Agents (Pot-Life Control) (Coatings & Construction)
Frequently Asked Questions
What is Polyoxypropylenetriamine used for?
Polyoxypropylenetriamine is a lower-molecular-weight, trifunctional polyether triamine used as a crosslinking epoxy curing agent and network former. Its three reactive amine ends build crosslinked networks in polyurea and polyurethane elastomers, composites, coatings, adhesives and sealants.
What is the CAS number of Polyoxypropylenetriamine?
Polyoxypropylenetriamine is assigned CAS 39423-51-3. It is a polymer on a propylene-oxide backbone, specified by grade and approximate molecular weight rather than a single molecular formula. The definitive identity for any supplied lot is confirmed on its CoA and SDS.
What is the cost of bulk Polyoxypropylenetriamine?
Pricing is volume-, packaging- and freight-dependent and is quoted per order rather than published. Submit your required quantity, packaging and destination for a current bulk quote.
What packaging and order quantities are available for bulk Polyoxypropylenetriamine?
RawSource supplies Polyoxypropylenetriamine to manufacturers in drums, IBC totes and bulk volumes. Provide your target volume and ship-to location for current pack sizes, MOQ and pricing, with CoA and SDS available per lot.
What is the REACH and TSCA regulatory status of Polyoxypropylenetriamine (Trifunctional Polyether Triamine)?
Polyoxypropylenetriamine (Trifunctional Polyether Triamine) (CAS 39423-51-3) 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 500-105-6).
What is the CAS number of Polyoxypropylenetriamine?
The CAS number of Polyoxypropylenetriamine is 39423-51-3.
Compare RS-T403 with the other polyetheramine grades, with functionality, molecular weight, AHEW and amine value side by side, on the polyetheramine supplier page. For the polyol side of polyurethane and polyurea systems, see polyurethane polyols (polyether and polyester).