SMILES: C1=CC=C(C(=C1)C2=COC3=C(C2=O)C(=C(C=C3)OC[C@@H]([C@H]([C@@H]([C@@H](C(=O)O)O)O)O)O)O)OS(=O)(=O)O
Description: The molecule is a polycyclic compound comprising a 5-hydroxy-4H-chromen-4-one core with 3-sulfooxyphenyl and 6-gulonate substituents; which can act as a non-peptide antigen. It has a role as a carbohydrate allergen. It is a conjugate acid of a 6-O-{5-hydroxy-4-oxo-3-[2-(sulfooxy)phenyl]-4H-chromen-6-yl}-L-gulonate.