4,5-dihydro-6H-cyclopenta[b]thiophen-6-one
3-(2,5-dibromothiophen-3-yl)propionic acid
1,3-dichloro-5H,6H-cyclopenta[c]thiophen-4-one
C36H32O8S3
2-[4-(2-carboxyethyl)-5-{5-[3-(2-carboxyethyl)-5-(2-carboxyphenyl)thiophen-2-yl]thiophen-2-yl}thiophen-2-yl]benzoic acid