"7-(benzenesulfonylmethyl)-4H-furo[2,3-c]chromene-6-carboxylic acid"
"7-(benzenesulfonylmethyl)-4H-furo[2,3-c]chromene-6-carboxylic acid"
"7-(benzenesulfonylmethyl)-4H-furo[2,3-c]chromene-6-carboxylic acid"
"7-(benzenesulfonylmethyl)-4H-furo[2,3-c]chromene-6-carboxylic acid"