The molecule is a macrodiolide consisting of two (3E,5R,6S,9R,14S)-5-hydroxy-6,14-dimethyl-2,8,11-trioxo-1,7-dioxacyclotetradec-3-en-9-yl attached to position 1 of (6S)-6-methyldihydro-2H-pyran-2,4(3H)-dione. Isolated from a culture of Acaulium sp. H-JQSF associated with the isopod Armadillidium vulgare. It has a role as an osteogenesis regulator and a bone density conservation agent. It is a macrodiolide, a triketone, a secondary alcohol and a cyclic ketone.
(3E,5R,6S,9R,14S)-5-hydroxy-9-[(6S)-3-[(3E,5R,6S,9R,14S)-5-hydroxy-6,14-dimethyl-2,8,11-trioxo-1,7-dioxacyclotetradec-3-en-9-yl]-6-methyl-2,4-dioxooxan-3-yl]-6,14-dimethyl-1,7-dioxacyclotetradec-3-ene-2,8,11-trione