L-Cysteine hydrochloride hydrate is a conditionally essential amino acid, which acts as a precursor for biologically active molecules such as hydrogen sulphide (H2S), glutathione and taurine.

Pantolactone belongs to the class of organic compounds known as gamma-butyrolactones. gamma-Butyrolactones are compounds containing a gamma-butyrolactone moiety which consists of an aliphatic five-member ring with four carbon atoms one oxygen atom and bears a ketone group on the carbon adjacent to the oxygen atom.

pp60(v-SRC) Autophosphorylation Site, Tyrosine Phosphopeptide