Crystal and molecular structure of the reaction product of 7-mercapto-4-methylcoumarin with iodine

4-Methyl-7-(4-methyl-2-oxo-2H-chromen-6-yl)disulfanyl-2H-chromen-2-one hydrotriiodide was synthesized by the reaction of 7-mercapto-4-methylcoumarin with iodine, and its structure was determined by NMR spectroscopy and X-ray diffraction combined with Raman and IR spectroscopy. The molecular and crystal structure of the reaction product was determined.