1,4-Diazabicyclo[2.2.2]octane
CAS 280-57-9
EC 205-999-9
Formula C6H12N2
MW 112.17 g/mol
Catalysts & Catalyst Precursors Plastics & PolymersBiotechnology & Life SciencesCoatings, Adhesives, Sealants & Elastomers Cross-linking & CuringCatalysisPreservation & Biocide
Description
1,4-Diazabicyclo[2.2.2]octane (CAS 280-57-9) is a bicyclic diamine commonly known by the trade names DABCO and Dabco 33LV, and abbreviated as TED in technical literature. It carries no assigned E-code and is classified under HS code 29335920. No FCC or Ph.Eur. monograph applies to this substance.
In polyurethane foam production, DABCO functions as a tertiary amine catalyst that selectively accelerates the gelling reaction between isocyanate and polyol groups, controlling cell structure and cure rate. It also serves as a crosslinker in epoxy and acrylate coatings, and as an antimicrobial agent in preservation applications where its nitrogen basicity disrupts microbial membrane function.
This product is supplied as a white crystalline powder and is registered under REACH. Procurement teams should confirm SDS compliance and packaging format directly with the supplier, as hygroscopic handling requirements influence available container sizes and storage specifications.
In polyurethane foam production, DABCO functions as a tertiary amine catalyst that selectively accelerates the gelling reaction between isocyanate and polyol groups, controlling cell structure and cure rate. It also serves as a crosslinker in epoxy and acrylate coatings, and as an antimicrobial agent in preservation applications where its nitrogen basicity disrupts microbial membrane function.
This product is supplied as a white crystalline powder and is registered under REACH. Procurement teams should confirm SDS compliance and packaging format directly with the supplier, as hygroscopic handling requirements influence available container sizes and storage specifications.
Physical Properties
| Melting Point | 158 °C |
| Boiling Point | 174 °C |
| Density | 0.14 g/cm³ |
| Flash Point | 198 °F |
| Appearance | white crystalline powder |
| Color | White to pale yellow |
| Form | Hygroscopic Crystals |
| Water Solubility | 46 g/100 mL (26 ºC) |
| Vapor Pressure | 2.9 mm Hg ( 50 °C) |
| Refractive Index | n 20/D 1.4634(lit.) |
| Log P | -0.49 at 20℃ |
Safety & Handling (Learn More)
Danger GHS02 GHS05 GHS07 GHS08
H
H228H302H315H318H319H335H361H371H372H412
P
P203P210P240P241P260P261P264P270P271P273P280P317P318P319P321P330P405P501P264+P265P301+P317P302+P352P304+P340P308+P316P332+P317P337+P317P362+P364P370+P378P403+P233P305+P351+P338P305+P354+P338
Trade & Regulatory
| HS Code | 29335920 |
| UN Number | 1325 |
| ADR Class | 4.1 |
| Packing Group | II |
| Storage Class | 4.1B - Flammable solid hazardous materials |
| WGK (Germany) | 1 |
Other Names
Triethylenediamine1,4-ethylenepiperazineTEDDABCOD 33LVDABCO(TM)Dabco 33LV
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Raw Materials
Derivatives
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