SXC 2023 ((S)-2-acetamido-3-(4-methylbenzoylthio)propanoic acid) is a therapeutic prodrug of N-acetyl-L-cysteine for the treatment of CNS disorders and neurocognitive disorders, and can be used to treat glutamatergic dysfunction and psychiatric disorders in which oxidative stress plays a key role.

[His11]Substance P

Succinic acid is a water-soluble, colorless crystal with an acid taste that is used as a chemical intermediate, in medicine, the manufacture of lacquers, and to make perfume esters.