The molecule is an ammonium ion resulting from the protonation of the amino group of (S)-2-aminopropan-1-ol. The major species at pH 7.3 according to Marvin ver. 6.2.0. It is a conjugate acid of a (S)-2-aminopropan-1-ol.
[(2S)-1-hydroxypropan-2-yl]azanium