Ethylamine

A primary alkylamine that acts as both a base and a nucleophile.

Formula
C2H7N
Functional group
Amines
Molar mass
45.08 g/mol
Also known as
ethanamine, Aminoethane, Monoethylamine, 1-Aminoethane, Aethylamine, Etilamina

Overview

A primary alkylamine that acts as both a base and a nucleophile.

Its nitrogen lone pair can accept a proton to form ethylammonium, or attack a suitable electrophile. Protonation changes the molecule’s charge and can affect its solubility. This acid–base process is distinct from making a new carbon–nitrogen bond by nucleophilic substitution.

Identifiers

Formula
C2H7N
Functional group
Amines
Molar mass
45.08 g/mol
Also known as
ethanamine, Aminoethane, Monoethylamine, 1-Aminoethane, Aethylamine, Etilamina
Chemical identifiers
SMILES
CCN
InChI
InChI=1S/C2H7N/c1-2-3/h2-3H2,1H3
PubChem CID
6341

Properties

Melting Point
-81.2 °C
Boiling Point
16.6 °C
Density
0.689 g/cu cm at 15 °C
Water solubility
Miscible with water

Related compounds

  • Amines

    A primary alkylamine that acts as both a base and a nucleophile.

Connected reactions

  • Ammonia substitution: Bromoethane → Ethylamine

    Ammonia attacks the carbon bearing bromine to give an alkylammonium intermediate. A further ammonia molecule removes a proton to release ethylamine; the product can undergo additional alkylation if haloalkane remains.

References

  1. PubChem Compound Summary: Ethylamine (CID 6341)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. Hazardous Substances Data Bank (HSDB): Ethylamine — melting pointHazardous Substances Data Bank (HSDB)

    Retrieved through PubChem PUG View on 2026-09-08. https://pubchem.ncbi.nlm.nih.gov/compound/6341#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. 3-250

  4. Hazardous Substances Data Bank (HSDB): Ethylamine — boiling pointHazardous Substances Data Bank (HSDB)

    Retrieved through PubChem PUG View on 2026-09-08. https://pubchem.ncbi.nlm.nih.gov/compound/6341#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. 3-250

  5. Hazardous Substances Data Bank (HSDB): Ethylamine — densityHazardous Substances Data Bank (HSDB)

    Retrieved through PubChem PUG View on 2026-09-08. https://pubchem.ncbi.nlm.nih.gov/compound/6341#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. 3-250

  6. Hazardous Substances Data Bank (HSDB): Ethylamine — solubilityHazardous Substances Data Bank (HSDB)

    Retrieved through PubChem PUG View on 2026-09-08. https://pubchem.ncbi.nlm.nih.gov/compound/6341#section=Solubility. Source value, complete property clause or compact miscibility statement retained; absent pressure, temperature or phase conditions are not inferred. Original reference: O'Neil, M.J. (ed.). The Merck Index - An Encyclopedia of Chemicals, Drugs, and Biologicals. Cambridge, UK: Royal Society of Chemistry, 2013., p. 697