- ▸ Delayed-action (sterically hindered) tertiary-amine gelling catalyst for polyurethane
- ▸ Provides extended cream/flow time then strong back-end cure in rigid foam and elastomers
- ▸ Useful where long flow before fast gel is required
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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N-Methyldicyclohexylamine (NMDCHA) is a delayed-action gelling amine catalyst for polyurethane — the bulky dicyclohexyl structure gives a slower start and back-end cure, useful where longer flow or open time is needed. Identity: CAS 7560-83-0.
What it is
NMDCHA (CAS 7560-83-0) is a liquid hindered tertiary amine. Its two cyclohexyl groups sterically slow its action, giving a delayed catalytic profile.
How it catalyzes
It provides delayed gel/cure: low initial activity that builds later, extending flow and fill time before a firm back-end cure. Useful in spray foam, molded and CASE systems that need open time.
Applications
NMDCHA is used in spray and molded polyurethane foam and CASE where delayed action and good flow are wanted. Compare the faster DMCHA.
Forms, grades and handling
NMDCHA 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-Methyldicyclohexylamine 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 delayed gelling catalyst (hindered amine) |
| Catalyst action | Delayed-action gelling |
| CAS Number | 7560-83-0 |
| Molecular Formula | C13H25N |
| Molecular Weight | 195.34 g/mol |
| Handling | Refer to the current SDS |
Regulatory & registration requirements
- TSCA (US):
- REACH (EU):
- EC number: 231-453-4
Source: EPA TSCA Inventory (July 2025 release) · ECHA CHEM — retrieved 2026-07-12
Frequently Asked Questions
What is N-methyldicyclohexylamine (NMDCHA) used for?
NMDCHA (CAS 7560-83-0) is a delayed-action gelling amine catalyst for polyurethane spray/molded foam and CASE, giving longer flow and fill time before a firm back-end cure.
How is bulk NMDCHA supplied and quoted?
RawSource supplies NMDCHA 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-Methyldicyclohexylamine (DCHMA)?
N-Methyldicyclohexylamine (DCHMA) (CAS 7560-83-0) 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 231-453-4).