SMILES: CC(=O)N[C@@H]1[C@H](CC(O[C@H]1CO)(C(=O)O)O)O
Description: The molecule is the ketoaldonic acid derivative that is N-acetylneuraminic acid after formal dehydroxylation and subsequent removal of C-8 and C-9. It derives from a N-acetylneuraminic acid.