The molecule is an organic cation obtained by protonation at position 3 in the oxazole ring of indolmycin. It is the major microspecies at pH 7.3 (according to Marvin v 6.2.0.). It is a conjugate acid of an indolmycin.
[(5S)-5-[(1R)-1-(1H-indol-3-yl)ethyl]-4-oxo-1,3-oxazolidin-2-ylidene]-methylazanium