Names | |
---|---|
IUPAC name
N-Methylglycine
| |
Systematic IUPAC name
(Methylamino)acetic acid | |
Identifiers | |
3D model (JSmol)
|
|
3DMet | |
1699442 | |
ChEBI | |
ChEMBL | |
ChemSpider | |
ECHA InfoCard | 100.003.217 |
EC Number |
|
2018 | |
KEGG | |
MeSH | Sarcosine |
PubChem CID
|
|
UNII | |
CompTox Dashboard (EPA)
|
|
| |
| |
Properties | |
C3H7NO2 | |
Molar mass | 89.094 g·mol−1 |
Appearance | White solid |
Odor | Odourless |
Density | 1.093 g/mL |
Melting point | 208 to 212 °C (406 to 414 °F; 481 to 485 K) experimental |
89.09 g L−1 (at 20 °C) | |
log P | 0.599 |
Acidity (pKa) | 2.36 |
Basicity (pKb) | 11.64 |
UV-vis (λmax) | 260 nm |
Absorbance | 0.05 |
Thermochemistry | |
Heat capacity (C)
|
128.9 J K−1 mol−1 |
Std enthalpy of
formation (ΔfH⦵298) |
−513.50–−512.98 kJ mol−1 |
Std enthalpy of
combustion (ΔcH⦵298) |
−1667.84–−1667.54 kJ mol−1 |
Related compounds | |
Related alkanoic acids
|
|
Related compounds
|
Dimethylacetamide |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
|
Sarcosine, also known as N-methylglycine, or monomethylglycine, is a amino acid with the formula CH3N(H)CH2CO2H. It exists at neutral pH as the zwitterion CH3N+(H)2CH2CO2−, which can be obtained as a white, water-soluble powder. Like some amino acids, sarcosine converts to a cation at low pH and an anion at high pH, with the respective formulas CH3N+(H)2CH2CO2H and CH3N(H)CH2CO2−. Sarcosine is a close relative of glycine, with a secondary amine in place of the primary amine.
Sarcosine is ubiquitous in biological materials. It is used in manufacturing biodegradable surfactants and toothpastes as well as in other applications. It is also a reagent in organic synthesis.[1]
Sarcosine is sweet to the taste.[citation needed]