Molar mass of L-Cysteine
The molecular formula of L-Cysteine is C3H7NO2S, giving a molar mass of 121.154 g/mol.
Molar mass
121.154g/mol
Computed from the formula with the IUPAC conventional atomic weights (abridged, 2021 edition).
Formula
C3H7NO2S
Category
Amino Acids
Atoms per molecule
14
L-Cysteine conversions
Mass ↔ amount and solution conversions derived from the stored molar mass of 121.154 g/mol.
1 mmol121.154 mg
1 g8.2540 mmol
1 M121.154 g/L
About L-Cysteine
A thiol-containing amino acid that forms disulfide bonds, the covalent staples that stabilise antibody domains and insulin's two chains. Its reducing thiol also makes it a standard laboratory protecting agent for enzymes and a precursor of the antioxidant glutathione.
Related compounds
Other entries in Amino Acids.
GlycineC2H5NO2 · 75.067 g/molL-AlanineC3H7NO2 · 89.094 g/molL-ArginineC6H14N4O2 · 174.204 g/molL-AsparagineC4H8N2O3 · 132.119 g/molL-Aspartic acidC4H7NO4 · 133.103 g/molL-Glutamic acidC5H9NO4 · 147.130 g/molL-GlutamineC5H10N2O3 · 146.146 g/molL-HistidineC6H9N3O2 · 155.157 g/molL-IsoleucineC6H13NO2 · 131.175 g/molL-LeucineC6H13NO2 · 131.175 g/molL-LysineC6H14N2O2 · 146.190 g/molL-MethionineC5H11NO2S · 149.208 g/mol