- ▸ Tertiary-amine accelerator/catalyst for polyurethane and epoxy curing
- ▸ Promotes urethane and epoxy ring-opening cure in coatings, adhesives and castings
- ▸ General-purpose catalytic base in industrial formulation
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,N-Dimethylbenzylamine (BDMA) is a general-purpose tertiary amine catalyst used in polyurethane and as a well-known epoxy cure accelerator. Identity: CAS 103-83-3.
What it is
BDMA (CAS 103-83-3) is a liquid benzyl tertiary amine. It is a versatile catalyst used both in PU systems and as an accelerator for epoxy and other cure chemistries.
How it catalyzes
In polyurethane it accelerates the urethane reaction; in epoxy it accelerates anhydride and other cures. Its dual utility makes it a common general catalyst/accelerator.
Applications
BDMA is used in polyurethane systems, epoxy curing (accelerator), and other catalysis. Compare N,N-diethylbenzylamine; epoxy accelerator DMP-30.
Forms, grades and handling
BDMA 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-Dimethylbenzylamine 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 / epoxy catalyst (tertiary amine) |
| Catalyst action | General (and epoxy accelerator) |
| CAS Number | 103-83-3 |
| Molecular Formula | C9H13N |
| Molecular Weight | 135.21 g/mol |
| Handling | Refer to the current SDS |
Regulatory & registration requirements
- TSCA (US):
- REACH (EU):
- EC number: 203-149-1
Source: EPA TSCA Inventory (July 2025 release) · ECHA CHEM — retrieved 2026-07-12
Frequently Asked Questions
What is N,N-dimethylbenzylamine (BDMA) used for?
BDMA (CAS 103-83-3) is a general-purpose tertiary amine catalyst used in polyurethane and as an epoxy cure accelerator (e.g. for anhydride cures).
How is bulk BDMA supplied and quoted?
RawSource supplies BDMA 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-Dimethylbenzylamine (BDMA)?
N,N-Dimethylbenzylamine (BDMA) (CAS 103-83-3) 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 203-149-1).