SMILES: C1=C(C=C(C=C1O)OC2=C(C=C(C3=C2OC4=C(C=C(C(=C4O3)C5=C6C(=C(C=C5O)O)OC7=C(O6)C(=CC(=C7OC8=CC(=CC(=C8)O)O)O)O)O)O)O)O)O
Description: The molecule is a phlorotanin that is 1,1'-bioxanthrene substituted by 3,5-dihydroxyphenoxy groups at position 6 and 6' and hydroxy groups at positions 2, 2', 4, 4', 7, 7', 9 and 9' respectively. It is isolated from an edible marine brown alga Ecklonia cava and exhibits antioxidant activity. It has a role as a metabolite, a radical scavenger and an anti-HIV-1 agent. It is a phlorotannin, an aromatic ether and an oxacycle. It derives from a phloroglucinol.