- ▸ Balanced blow/gel tertiary-amine catalyst widely used in rigid PU insulation foam
- ▸ Standard catalyst for spray and pour-in-place rigid foam (Polycat 8 grade)
- ▸ Co-catalyst for flexible and semi-rigid 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 →Cross-reference: comparable to Polycat 8 (an Evonik product): the same N,N-dimethylcyclohexylamine molecule (CAS 98-94-2). RawSource is independent of Evonik; confirm grade-critical specs against the RawSource TDS and lot CoA.
N,N-Dimethylcyclohexylamine (DMCHA) is a versatile gelling/general amine catalyst for polyurethane — widely used in rigid foam and CASE for balanced, strong catalysis. Identity: CAS 98-94-2.
What it is
DMCHA (CAS 98-94-2) is a liquid cyclohexyl tertiary amine. It is one of the most common general-purpose PU catalysts, valued for strong, balanced activity.
How it catalyzes
It accelerates the gel (urethane) reaction and overall cure with some blow activity, giving a balanced profile suited to rigid foam, spray foam and CASE. Combined with blowing catalysts to tune rise.
Applications
DMCHA is used in rigid and spray polyurethane foam, and CASE, with a blowing catalyst such as PMDETA. Compare the delayed-action NMDCHA.
Forms, grades and handling
DMCHA 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 N,N-Dimethylcyclohexylamine 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 (tertiary amine) |
| Catalyst action | Gelling / general |
| CAS Number | 98-94-2 |
| Molecular Formula | C8H17N |
| Molecular Weight | 127.23 g/mol |
| Handling | Refer to the current SDS |
Regulatory & registration requirements
- TSCA (US):
- REACH (EU):
- EC number: 202-715-5
Source: EPA TSCA Inventory (July 2025 release) · ECHA CHEM — retrieved 2026-07-12
Frequently Asked Questions
What is N,N-dimethylcyclohexylamine (DMCHA) used for?
DMCHA (CAS 98-94-2) is a versatile gelling/general amine catalyst for rigid and spray polyurethane foam and CASE, giving strong balanced catalysis; it is combined with blowing catalysts to tune rise.
How is bulk DMCHA supplied and quoted?
RawSource supplies DMCHA 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 N,N-Dimethylcyclohexylamine (DMCHA)?
N,N-Dimethylcyclohexylamine (DMCHA) (CAS 98-94-2) 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 202-715-5).