Triethylamine

A tertiary organic base with three ethyl groups attached to nitrogen.

Formula
C6H15N
Functional group
Amines
Molar mass
101.19 g/mol
Also known as
N,N-diethylethanamine, (Diethylamino)ethane, Ethanamine, N,N-diethyl-, Triaethylamin, Trietilamina

Overview

A tertiary organic base with three ethyl groups attached to nitrogen.

Proton capture gives triethylammonium and can neutralise an acid coproduct. Its nitrogen has no N–H bond before protonation, so it is not an ordinary substrate for conversion into a neutral amide by acylation. Steric environment also influences its nucleophilic behaviour.

Identifiers

Formula
C6H15N
Functional group
Amines
Molar mass
101.19 g/mol
Also known as
N,N-diethylethanamine, (Diethylamino)ethane, Ethanamine, N,N-diethyl-, Triaethylamin, Trietilamina
Chemical identifiers
SMILES
CCN(CC)CC
InChI
InChI=1S/C6H15N/c1-4-7(5-2)6-3/h4-6H2,1-3H3
PubChem CID
8471

Properties

Melting Point
-114.7 °C
Boiling Point
88.8 °C
Density
0.7275 g/cu cm at 20 °C
Water solubility
In water, 6.86X10+4 mg/L at 25 °C

Related compounds

  • Amines

    A tertiary organic base with three ethyl groups attached to nitrogen.

References

  1. PubChem Compound Summary: Triethylamine (CID 8471)National Center for Biotechnology Information · PubChem

    Identity, molecular formula, molecular weight and aliases retrieved via PUG REST on 2026-09-08.

  2. OpenStax Organic Chemistry: Basicity of aminesJohn McMurry · OpenStax · 2023

    Supports the qualitative structural interpretation of the recorded molecular structure; no new physical measurement or verified preparative yield is claimed.

  3. OpenStax Organic Chemistry: Reactions of aminesJohn McMurry · OpenStax · 2023

    Supports the qualitative structure and reactivity context; identity and numerical measurements retain their original references.

  4. Hazardous Substances Data Bank (HSDB): Triethylamine — melting pointHazardous Substances Data Bank (HSDB)

    Retrieved through PubChem PUG View on 2026-09-08. https://pubchem.ncbi.nlm.nih.gov/compound/8471#section=Melting-Point. Source value, complete property clause or compact miscibility statement retained; absent pressure, temperature or phase conditions are not inferred. Original reference: Haynes, W.M. (ed.). CRC Handbook of Chemistry and Physics. 95th Edition. CRC Press LLC, Boca Raton: FL 2014-2015, p. 3-526

  5. Hazardous Substances Data Bank (HSDB): Triethylamine — boiling pointHazardous Substances Data Bank (HSDB)

    Retrieved through PubChem PUG View on 2026-09-08. https://pubchem.ncbi.nlm.nih.gov/compound/8471#section=Boiling-Point. Source value, complete property clause or compact miscibility statement retained; absent pressure, temperature or phase conditions are not inferred. Original reference: Haynes, W.M. (ed.). CRC Handbook of Chemistry and Physics. 95th Edition. CRC Press LLC, Boca Raton: FL 2014-2015, p. 3-526

  6. Hazardous Substances Data Bank (HSDB): Triethylamine — densityHazardous Substances Data Bank (HSDB)

    Retrieved through PubChem PUG View on 2026-09-08. https://pubchem.ncbi.nlm.nih.gov/compound/8471#section=Density. Source value, complete property clause or compact miscibility statement retained; absent pressure, temperature or phase conditions are not inferred. Original reference: Haynes, W.M. (ed.). CRC Handbook of Chemistry and Physics. 95th Edition. CRC Press LLC, Boca Raton: FL 2014-2015, p. 3-526

  7. Hazardous Substances Data Bank (HSDB): Triethylamine — solubilityHazardous Substances Data Bank (HSDB)

    Retrieved through PubChem PUG View on 2026-09-08. https://pubchem.ncbi.nlm.nih.gov/compound/8471#section=Solubility. Source value, complete property clause or compact miscibility statement retained; absent pressure, temperature or phase conditions are not inferred. Original reference: Yalkowsky, S.H., He, Yan, Jain, P. Handbook of Aqueous Solubility Data Second Edition. CRC Press, Boca Raton, FL 2010, p. 334