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2,5-Dimercaptoterephthalic acid can be used as a ligand to coordinate with Zr(IV) to prepare thiol-functionalized Zr-DMBD MOFs. This material, loaded onto three-dimensional macroporous carbon, forms an electrochemical sensor integrating removal and detection, used for the sensitive determination of mercury ions in wastewater.

2,5-Dimercaptoterephthalic acid is mainly prepared by saponification reaction of S,S-dithiocarbamate with potassium hydroxide by heating.

[1] Field, L., & Engelhardt, P. R. (1970). Organic disulfides and related substances. XXX. Preparations and reactions of mercaptoterephthalic acids and derivatives. The Journal of Organic Chemistry, 35 11, 3647–3655. https://doi.org/10.1021/jo00836a012
[2] Yang, H., Peng, C., Han, J., Song, Y., &amp; Wang, L. (2020). Three-dimensional macroporous Carbon/Zr-2,5-dimercaptoterephthalic acid metal-organic frameworks nanocomposites for removal and detection of Hg(II). <i>Sensors and Actuators B: Chemical</i>, <i>320</i>, Article 128447. https://doi.org/10.1016/j.snb.2020.128447