An Industrial Approach to Production of Tofacitinib Citrate (TFC) as an Anti-COVID-19 Agent: A Joint Experimental and Theoretical Study

Figure 2

The chromatograms of the related impurity analysis for the TFC sample at 1000 ppm (a) and for the diluted standard at 1 ppm (b) concentration prepared by using the reverse phase HPLC system.

(a)

(b)