2,5-Thiophenedicarboxylic acid (2,5-TDCA, H2TDC) is an important building block in the preparation of fluorescent brightening agent, fungicides and anti-cancer drug. It has been generated by chlorination of adipic acid using thionyl chloride
T 3178 (OTTO) Thiophene-2,5-dicarboxylic acid Cas 4282-31-9 - used in the synthesis new cobalt(II) thiophenedicarboxylate coordination polymer and novel mesogenic thiophene based supramolecular liquid crystals.