The molecule is a meroterpenoid that is hexadeca-2,6,14-triene-5,12-dione substituted by a hydroxy group at position 13, a 2-hydroxy-5-methoxy-3-methylphenyl group at position 1 and methyl groups at positions 3, 7, 11 and 15. Isolated from Halidrys siliquosa, it exhibits antibacterial and antifouling activities. It has a role as a metabolite, an antifouling biocide and an antibacterial agent. It is a meroterpenoid, a member of phenols, an aromatic ether, an enone, a secondary alcohol and a secondary alpha-hydroxy ketone.
(2E,6Z)-13-hydroxy-1-(2-hydroxy-5-methoxy-3-methylphenyl)-3,7,11,15-tetramethylhexadeca-2,6,14-triene-5,12-dione