(2S)-3,4-Dihydro-1,2(2H)-pyridinedicarboxylic Acid 1,2-Bis(1,1-dimethylethyl) Ester is an intermediate used in the synthesis of Isodesmosine Chloride Hydrate (Synthetic) (I815051), which is a component of elastin and also it is extremely hygroscopic and must be stored over a desiccant such as silica gel.