The molecule is an optically active form of alloisoleucine having L-(2S,3R)-configuration. It has a role as a human metabolite. It is a non-proteinogenic L-alpha-amino acid and an alloisoleucine. It is an enantiomer of a D-alloisoleucine. It is a tautomer of a L-alloisoleucine zwitterion.
(2S,3R)-2-amino-3-methylpentanoic acid