英文别名Tetra-Mannuronic Acid Sodium Salt; (2S,3S,4S,5S,6R)-6-[(2S,3S,4R,5S,6R)-2-carboxy-6-[(2S,3S,4R,5S,6R)-2-carboxy-6-[(2S,3S,4R,5S,6R)-2-carboxy-4,5,6-trihydroxyoxan-3-yl]oxy-4,5-dihydroxyoxan-3-yl]oxy-4,5-dihydroxyoxan-3-yl]oxy-3,4,5-trihydroxyoxane-2-carboxylic acid; β-D-Mannopyranuronic acid, O-β-D-mannopyranuronosyl-(1→4)-O-β-D-mannopyranuronosyl-(1→4)-O-β-D-mannopyranuronosyl-(1→4)- 
