Molar Mass of Common Amino Acids
The molar mass of an amino acid represents the mass of one mole of that acid. The following table provides a curated list of molar mass values for the 20 common amino acids.
| Formula | ||
|---|---|---|
| Alanine (Ala) | C3H7NO2 | 89.09 |
| Arginine (Arg) | C6H14N4O2 | 174.2 |
| Asparagine (Asn) | C4H8N2O3 | 132.12 |
| Aspartic Acid (Asp) | C4H7NO4 | 133.1 |
| Cysteine (Cys) | C3H7NO2S | 121.16 |
| Glutamic Acid (Glu) | C5H9NO4 | 147.13 |
| Glutamine (Gln) | C5H10N2O3 | 146.15 |
| Glycine (Gly) | C2H5NO2 | 75.07 |
| Histidine (His) | C6H9N3O2 | 155.15 |
| Isoleucine (Ile) | C6H13NO2 | 131.17 |
| Leucine (Leu) | C6H13NO2 | 131.17 |
| Lysine (Lys) | C6H14N2O2 | 146.19 |
| Methionine (Met) | C5H11NO2S | 149.21 |
| Phenylalanine (Phe) | C9H11NO2 | 165.19 |
| Proline (Pro) | C5H9NO2 | 115.13 |
| Serine (Ser) | C3H7NO3 | 105.09 |
| Threonine (Thr) | C4H9NO3 | 119.12 |
| Tryptophan (Trp) | C11H12N2O2 | 204.23 |
| Tyrosine (Tyr) | C9H11NO3 | 181.19 |
| Valine (Val) | C5H11NO2 | 117.15 |
Related Tables
References: 1) Cardarelli, François. Materials Handbook: A Concise Desktop Reference. Switzerland: Springer International Publishing, 2018. 2) CRC Handbook of Chemistry and Physics, 97th Edition. United Kingdom: CRC Press, 2016-2017. 3) Yaws, Carl L. The Yaws Handbook of Physical Properties for Hydrocarbons and Chemicals. Netherlands: Elsevier Science, 2015. 4) Occupational Safety and Health Administration (OSHA): The National Institute for Occupational Safety and Health (NIOSH).