The molecule is a ketoaldonic acid derivative that is beta-neuraminic acid in which the hydroxy groups at positions 7 and 9 are substituted by an amino group and hydrogen respectively. It is a ketoaldonic acid derivative and an amino sugar. It derives from a beta-neuraminic acid. It is a conjugate base of a legionaminate(1+).
(2S,4S,5R,6S)-5-amino-6-[(1R,2R)-1-amino-2-hydroxypropyl]-2,4-dihydroxyoxane-2-carboxylic acid