ChEBI: (S)-2-amino-6-boronohexanoic acid is l-Norleucine substituted at C-6 with a borono group. It is an organoboron compound and a non-proteinogenic L-alpha-amino acid. It is functionally related to a L-norleucine. It is a conjugate acid of a (S)-2-amino-6-boronohexanoate.