Iodotannic acid is a chemical compound that can be found in certain natural sources. Synonymous terms for this compound include "iodogallic acid" and "iodocatechuic acid". These synonyms refer to the same chemical structure with slight variations in nomenclature. Iodotannic acid is predominantly used in the field of analytical chemistry for its ability to form stable complexes with various metal ions. Its applications range from qualitative tests for metal ions to the determination of trace metals in environmental samples. The utilization of these synonyms allows scientists to communicate effectively when referring to this particular acid, leading to better understanding and collaboration in research and the scientific community.