The molecule is a member of the class of N-acetylneuraminic acids that is alpha-neuraminic acid which has acetylated on N-5 and O-9. It derives from an alpha-neuraminic acid.
(2R,4S,5R,6R)-5-acetamido-6-[(1R,2R)-3-acetyloxy-1,2-dihydroxypropyl]-2,4-dihydroxyoxane-2-carboxylic acid