Ruthenium trichloride is widely used in organic synthesis, biochemistry and cell molecular biology. It can be used for the synthesis of organoruthenium compounds and the detection of metal ions in organisms. In addition, it can also be used in the study of metal ion transfer reaction, cell proliferation and other biological processes. In the petrochemical field, triphenylphosphine rhodium chloride is also used as a paraffin hydrogenation catalyst. Through its catalytic effect, the quality and performance of paraffin products can be significantly improved to meet the demand for high-quality paraffin in different fields. In the field of materials science, the catalytic effect of triphenylphosphine rhodium chloride can not be ignored. It can catalyze the cycloaddition reaction of unconjugated enyne with 1, 3-diene, which provides an effective way to synthesize complex organic molecules. These organic molecules have potential application value in the fields of photoelectric materials, functional polymers and biomedical materials