2-Mercaptonicotinic Acid丨CAS 38521-46-9

2-Mercaptonicotinic acid (CAS 38521-46-9) is a sulfur-substituted pyridinecarboxylic acid widely applied in pharmaceuticals, coordination chemistry, and analytical science. In drug discovery, it serves as a building block for the synthesis of heterocyclic compounds with potential antimicrobial, anticancer, and anti-inflammatory properties. Its sulfur and carboxyl functional groups make it a versatile ligand in coordination chemistry, where it forms stable complexes with transition metals, supporting applications in catalysis, material development, and bioinorganic studies. In analytical chemistry, it is utilized in metal ion detection and chelation studies, providing selectivity in spectroscopic and electrochemical assays. Furthermore, it is explored in organic synthesis as a precursor for sulfur-containing derivatives with enhanced biological activity.

The benefits of 2-mercaptonicotinic acid are rooted in its multifunctional reactivity and structural features. The combination of thiol and carboxyl groups provides dual binding sites, enhancing its ability to coordinate with metals or undergo selective transformations in synthetic chemistry. This versatility allows for the design of molecules with improved biological efficacy and functional materials with desirable catalytic or electronic properties. Its pyridine backbone contributes rigidity and aromatic stability, supporting efficient incorporation into complex chemical frameworks. Additionally, its utility across pharmaceuticals, catalysis, and analytical chemistry highlights its adaptability and broad scientific value.