The molecule is a polycyclic ether comprising a linear sequence of five trans-fused oxacycles (three oxepines and two pyrans) which corresponds to the ABCDE ring fragment of ciguatoxin CTX1B. It has a role as an epitope. It is a polycyclic ether and an organic heteropentacyclic compound.
(1R,3S,4R,5R,7R,11S,13R,15S,17R,20S,21R,23S)-7-[(E,3S)-3,4-dihydroxybut-1-enyl]-21-prop-2-enyl-2,6,12,16,22-pentaoxapentacyclo[13.10.0.03,13.05,11.017,23]pentacosa-8,18,24-triene-4,20-diol