*2.2. Materials*

Synthesis of the PrC-210 HCl aminothiol, a preclinical molecule, was described separately [19,20]. PrC-210 HCl crystals (3-(methylamino)-2-(methylaminomethyl)propane-1 thiol) are stored under a nitrogen atmosphere at −20 ◦C, and even with routine thawing, use, and re-storage, crystalline PrC-210 is completely stable for greater than 4 years by mass spectrometry analysis. Other chemical reagents were obtained from Sigma Aldrich (St. Louis, MO, USA). UW Organ Preservation Solution was purchased from Bridge to Life, Columbia, SC, USA.
