SMILES: C1C[C@@H]2[C@H]([C@@H]([C@@H]3[C@@H](O2)CC=C[C@@H](O3)/C=C/[C@@H](CO)O)O)OC1
Description: The molecule is a polycyclic ether comprising a linear sequence of three trans-fused oxacycles (one oxepine and two pyrans) which corresponds to the ABC ring fragment of ciguatoxin CTX1B. It has a role as an epitope. It is a polycyclic ether and an organic heterotricyclic compound.