IUPAC:(2S,3S,4S,5R,6S)-6-(3'-{[(2S,3R,4S,5S,6S)-6-carboxy-3,4,5-trihydroxyoxan-2-yl]oxy}-3H-spiro[2-benzofuran-1,9'-xanthen]-3-oneoxy)-3,4,5-trihydroxyoxane-2-carboxylic acid
IUPAC:(2S,3S,4S,5R,6S)-6-(3'-{[(2S,3R,4S,5S,6S)-6-carboxy-3,4,5-trihydroxyoxan-2-yl]oxy}-3H-spiro[2-benzofuran-1,9'-xanthen]-3-oneoxy)-3,4,5-trihydroxyoxane-2-carboxylic acid