The molecule is an N(2)-acyl-L-glutaminate resulting from the deprotonation of the carboxy group of N(2)-(3-hydroxy-3-methylhexanoyl)-L-glutamine. The major species at pH 7.3. It is a conjugate base of a N(2)-(3-hydroxy-3-methylhexanoyl)-L-glutamine.
(2S)-5-amino-2-[(3-hydroxy-3-methylhexanoyl)amino]-5-oxopentanoate