- ▸ Quaternary-ammonium trimerization catalyst that drives isocyanate→isocyanurate (PIR) network formation
- ▸ Used in polyisocyanurate (PIR) rigid foam boardstock and panels for fire-resistant insulation
- ▸ Promotes crosslink density/thermal stability in rigid PU/PIR 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.
Request SDS →
2-Hydroxypropyltrimethylammonium formate is a quaternary ammonium trimerization catalyst — the type used to drive isocyanurate (PIR) formation in rigid polyurethane/polyisocyanurate foam. Identity: CAS 62314-25-4.
What it is
2-Hydroxypropyltrimethylammonium formate (CAS 62314-25-4) is a liquid quaternary ammonium carboxylate (formate) catalyst, often supplied in a glycol carrier.
How it catalyzes
It strongly promotes the trimerization reaction (isocyanate → isocyanurate ring), building the thermally stable, flame-resistant isocyanurate network of PIR foam; it is used with amine gel/blow catalysts to set the overall profile.
Applications
It is used in polyisocyanurate (PIR) and rigid polyurethane insulation foam, with amine co-catalysts. Related trimerization-active amine: tris(3-dimethylaminopropyl)amine.
Forms, grades and handling
Supplied as a liquid (often in a glycol carrier) 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 2-Hydroxypropyltrimethylammonium Formate 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 trimerization catalyst (quaternary ammonium) |
| Catalyst action | Trimerization (PIR) |
| CAS Number | 62314-25-4 |
| Molecular Formula | C7H17NO3 |
| Molecular Weight | 163.21 g/mol |
| Handling | Refer to the current SDS |
Regulatory & registration requirements
- TSCA (US):
- REACH (EU):
- EC number: 263-503-6
Source: EPA TSCA Inventory (July 2025 release) · ECHA CHEM — retrieved 2026-07-12
Frequently Asked Questions
What is 2-hydroxypropyltrimethylammonium formate used for?
It is a quaternary ammonium trimerization catalyst (CAS 62314-25-4) used to drive isocyanurate (PIR) formation in rigid polyurethane/polyisocyanurate insulation foam, with amine gel/blow co-catalysts.
What is a trimerization catalyst?
A trimerization catalyst promotes the reaction of three isocyanate groups into an isocyanurate ring, building the thermally stable, fire-resistant network of polyisocyanurate (PIR) foam used in insulation.
How is bulk this trimerization catalyst supplied and quoted?
RawSource supplies this trimerization catalyst 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 (2-Hydroxypropyl)trimethylammonium formate?
(2-Hydroxypropyl)trimethylammonium formate (CAS 62314-25-4) 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 263-503-6).