N,N-Dimethylethylamine (DMEA), sometimes referred to as dimethylethylamine, is an organic compound with formula (CH3)2NC2H5. It is an industrial chemical that is mainly used in foundries as a catalyst for epoxy resins and polyurethane as well as sand core production.[2] [3] Dimethylethylamine is a malodorous, volatile liquid at room temperature that is excreted at greater concentrations with larger dietary intake of trimethylamine.[1]
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| Names | |
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| Preferred IUPAC name
N,N-Dimethylethanamine | |
| Other names
Ethyl(dimethyl)amine | |
| Identifiers | |
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3D model (JSmol) |
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| ChemSpider |
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| ECHA InfoCard | 100.009.038 
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PubChem CID |
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| UNII | |
CompTox Dashboard (EPA) |
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| Properties | |
| C4H11N | |
| Molar mass | 73.139 g·mol−1 |
| Appearance | Volatile liquid at room temp. |
| Density | 0.7±0.1 g/cm3 |
| Melting point | −140 °C (−220 °F; 133 K) |
| Boiling point | 36.5 °C (97.7 °F; 309.6 K) |
| Vapor pressure | 495.4±0.1 mmHg |
| Acidity (pKa) | 10.16 (for the conjugate acid) (H2O)[1] |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). | |
The aim was to study the effect of trimethylamine (TMA) on the metabolism of the industrial catalyst N,N-dimethylethylamine to ascertain whether biological monitoring of industrial exposure to N,N-dimethylethylamine is compromised and excretion of the malodorous N,N-dimethylethylamine in sweat and urine is increased by dietary intake of TMA....Although the increased urinary and hidrotic excretion of N,N-dimethylethylamine may contribute to body odor problems, they were primarily due to TMA excretion, which is much the greater.
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