- ▸ Strong gelling/balanced bicyclic amine catalyst for rigid and flexible polyurethane foam
- ▸ Methylated DABCO variant offering modified activity vs standard TEDA for reaction-profile tuning
- ▸ Used where a delayed onset relative to neat TEDA is desired
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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2-Methyltriethylenediamine (2-methyl-TEDA) is a gelling amine catalyst for polyurethane — a methylated triethylenediamine variant of the benchmark DABCO catalyst with a modified activity profile. Identity: CAS 1193-66-4.
What it is
2-Methyltriethylenediamine (CAS 1193-66-4, 2-methyl-1,4-diazabicyclo[2.2.2]octane) is a bicyclic diamine, the methyl-substituted analogue of TEDA. It is commonly supplied in solution.
How it catalyzes
It catalyzes the gel (urethane) reaction like TEDA, with the methyl substituent modifying basicity and selectivity. Balanced with a blowing catalyst to tune the foam.
Applications
It is used in flexible and rigid polyurethane foam and CASE as a gelling catalyst, with a blowing co-catalyst. The parent is TEDA.
Forms, grades and handling
Supplied neat or in solution, 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-Methyltriethylenediamine 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 gelling catalyst (bicyclic amine) |
| Catalyst action | Gelling |
| CAS Number | 1193-66-4 |
| Molecular Formula | C7H14N2 |
| Molecular Weight | 126.20 g/mol |
| Handling | Refer to the current SDS |
Regulatory & registration requirements
- TSCA (US):
- REACH (EU): Not determined from public registry
- EC number: 214-777-0
Source: EPA TSCA Inventory (July 2025 release) · ECHA CHEM — retrieved 2026-07-12
Frequently Asked Questions
What is 2-methyltriethylenediamine used for?
2-Methyltriethylenediamine (2-methyl-DABCO, CAS 1193-66-4) is a gelling amine catalyst for polyurethane foam and CASE, a methylated analogue of TEDA, balanced with a blowing catalyst.
How is bulk 2-methyltriethylenediamine supplied and quoted?
RawSource supplies 2-methyltriethylenediamine 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-Methyl-1,4-diazabicyclooctane (2-Methyltriethylenediamine)?
2-Methyl-1,4-diazabicyclooctane (2-Methyltriethylenediamine) (CAS 1193-66-4) is listed as Active on the U.S. EPA TSCA Inventory; its REACH registration status is not determined from the public ECHA registry.