SMILES: CC(=O)N[C@@H]1[C@H]([C@@H]([C@H](OC1O)CO)O)O[C@H]2[C@@H]([C@H](C=C(O2)C(=O)O)O)O
Description: The molecule is an amino disaccharide consisting of N-acetyl-D-glucosamine having a 4-deoxy-alpha-L-threo-hex-4-enopyranuronosyl residue attached at the 3-position. It is an alpha,beta-unsaturated monocarboxylic acid, an amino disaccharide and a carbohydrate acid derivative.