The molecule is the conjugate base of 2-iminio-3-(7-chloroindol-3-yl)propionate arising from deprotonation of the iminio function. It is a conjugate base of a 2-iminio-3-(7-chloroindol-3-yl)propionate.
3-(7-chloro-1H-indol-3-yl)-2-iminopropanoate