- ▸ Tertiary-amine catalyst that accelerates polyurethane (gelling/blowing) and epoxy cure reactions
- ▸ Used in PU foams, coatings and adhesives to drive isocyanate-polyol and amine-epoxy network formation
- ▸ Functions as a strong gelling catalyst in two-component systems
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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Pentamethyldiethylenetriamine (PMDETA) is a strong blowing catalyst for polyurethane foam — a tertiary triamine that drives the water-isocyanate reaction for fast, efficient CO2 generation and foam rise. Identity: CAS 3030-47-5.
What it is
PMDETA (CAS 3030-47-5) is a liquid permethylated triamine. Its three tertiary-amine sites make it a powerful, blow-selective catalyst widely used in rigid and flexible foam.
How it catalyzes
It strongly accelerates the blow reaction (water + isocyanate → CO2 + urea), promoting rapid gas generation and rise; it is balanced against a gelling catalyst such as TEDA to set the foam profile.
Applications
PMDETA is used in rigid (insulation) and flexible polyurethane foam, often with TEDA for gel/blow balance. Related blowing catalysts: BDMAEE and PMDPTA.
Forms, grades and handling
PMDETA is supplied as a clear liquid in drums, IBCs and bulk. Properties are typical reference values; the Certificate of Analysis (CoA) for the lot you buy governs. Amine catalysts are typically corrosive and have a strong odor — handle per the current Safety Data Sheet (SDS). Each lot ships with CoA, TDS and SDS.
Bulk supply and RFQ
RawSource sources Pentamethyldiethylenetriamine direct from producers in bulk, with CoA, TDS and SDS per lot. Tell us your system (flexible/rigid foam, CASE), the reaction balance you need (gel vs blow), and any low-emission requirement, and we will quote the right catalyst or blend. See the full range and gel/blow selection logic in the polyurethane catalysts guide.
Typical Properties
Typical reference values, not a specification; the Certificate of Analysis (CoA) for the lot governs.
| Property | Typical Value |
|---|---|
| Chemical / class | Polyurethane blowing catalyst (tertiary amine) |
| Catalyst action | Strong blowing |
| CAS Number | 3030-47-5 |
| Molecular Formula | C9H23N3 |
| Molecular Weight | 173.30 g/mol |
| Handling | Refer to the current SDS |
Regulatory & registration requirements
- TSCA (US):
- REACH (EU):
- EC number: 221-201-1
Source: EPA TSCA Inventory (July 2025 release) · ECHA CHEM — retrieved 2026-07-12
Frequently Asked Questions
What is PMDETA used for?
Pentamethyldiethylenetriamine (PMDETA, CAS 3030-47-5) is a strong blowing catalyst for rigid and flexible polyurethane foam, accelerating the water-isocyanate reaction for CO2 generation and rise; it is balanced with a gelling catalyst.
How is bulk PMDETA supplied and quoted?
RawSource supplies PMDETA in bulk with CoA, TDS and SDS per lot. Pricing is quote-based on grade and volume; submit an RFQ with your PU system and the gel/blow balance you need.
What is the REACH and TSCA regulatory status of Pentamethyldiethylenetriamine (PMDETA)?
Pentamethyldiethylenetriamine (PMDETA) (CAS 3030-47-5) 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 221-201-1).