N(omega)-(1-hydroxy-2-oxoethyl)-L-argininium residue
n(omega)-(1-hydroxy-2-oxoethyl)-l-argininium residue
An α-amino-acid residue cation obtained by protonation of the guanidine function of <em>N</em><small><sup>ω</small></sup>-(1-hydroxy-2-oxoethyl)-<small>L</small>-argininium residue.