Methylamine
A primary amine that forms methylammonium salts on protonation.
- Formula
- CH5N
- Functional group
- Amines
- Molar mass
- 31.057 g/mol
- Also known as
- methanamine, Aminomethane, Monomethylamine, Carbinamine, Mercurialin, N-Methylamine
Overview
A primary amine that forms methylammonium salts on protonation.
The nitrogen lone pair accepts a proton from an acid. Protonation changes the charge but leaves the carbon–nitrogen bond intact. Primary refers to the single carbon group attached to nitrogen, not to the number of carbon atoms in the entire molecule.
Identifiers
- Formula
- CH5N
- Functional group
- Amines
- Molar mass
- 31.057 g/mol
- Also known as
- methanamine, Aminomethane, Monomethylamine, Carbinamine, Mercurialin, N-Methylamine
Chemical identifiers
- SMILES
- CN
- InChI
- InChI=1S/CH5N/c1-2/h2H2,1H3
- PubChem CID
- 6329
Properties
- Melting Point
- -93.42 °C
- Boiling Point
- BP: -6.3 °C at 760 mm Hg
- Density
- 0.6624 g/cu cm at 25 °C
- Water solubility
- Very soluble in water
Related compounds
- Amines
A primary amine that forms methylammonium salts on protonation.
References
- PubChem Compound Summary: Methylamine (CID 6329)National Center for Biotechnology Information · PubChem
Identity, molecular formula, molecular weight and aliases retrieved via PUG REST on 2026-09-08.
- 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.
- OpenStax Organic Chemistry: Structure and properties of aminesJohn McMurry · OpenStax · 2023
Supports the qualitative structure and reactivity context; identity and numerical measurements retain their original references.
- Hazardous Substances Data Bank (HSDB): Methylamine — melting pointHazardous Substances Data Bank (HSDB)
Retrieved through PubChem PUG View on 2026-09-08. https://pubchem.ncbi.nlm.nih.gov/compound/6329#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. 3-354
- Hazardous Substances Data Bank (HSDB): Methylamine — boiling pointHazardous Substances Data Bank (HSDB)
Retrieved through PubChem PUG View on 2026-09-08. https://pubchem.ncbi.nlm.nih.gov/compound/6329#section=Boiling-Point. 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. 1116
- Hazardous Substances Data Bank (HSDB): Methylamine — densityHazardous Substances Data Bank (HSDB)
Retrieved through PubChem PUG View on 2026-09-08. https://pubchem.ncbi.nlm.nih.gov/compound/6329#section=Density. Source value, complete property clause or compact miscibility statement retained; absent pressure, temperature or phase conditions are not inferred. Original reference: Gerhartz, W. (exec ed.). Ullmann's Encyclopedia of Industrial Chemistry. 5th ed.Vol A1: Deerfield Beach, FL: VCH Publishers, 1985 to Present., p. VA16: 536 (1990)
- Hazardous Substances Data Bank (HSDB): Methylamine — solubilityHazardous Substances Data Bank (HSDB)
Retrieved through PubChem PUG View on 2026-09-08. https://pubchem.ncbi.nlm.nih.gov/compound/6329#section=Solubility. 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. 3-354