SMILES: C=CC[C@@H]1[C@H](C=C[C@@H]2[C@@H](O1)C=C[C@@H]3[C@@H](O2)C[C@@H]4[C@@H](O3)[C@@H]([C@@H]5[C@@H](O4)CC=C[C@@H](O5)/C=C/[C@@H](CO)O)O)O
Description: 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.