In this work, a new complex compound was synthesized based on manganese (II) chloride and the potassium salt of ketoprofen. The initial reagents
were taken in a molar ratio of 1:4 and the formation of the complex was studied. To determine the composition, structure, and properties of the obtained compound, methods of elemental analysis, infrared (IR) spectroscopy, X-ray phase analysis, and thermal analysis were used. Based on the analysis results, it was established that the coordination number of the central Mn (II) atom is 6. The obtained results serve as a basis for a more in-depth study of the structure and properties of manganese complexes.