16900-57-5

Hydrogen sulphide (H₂S), a naturally occurring gasotransmitter, is a potent vasodilator and pro-inflammatory mediator. DL-Propargyl glycine (PAG) is an irreversible inhibitor of the H₂S synthesizing enzyme cystathionine-γ-lyase (CSE). PAG blocks H₂S synthesis activity in rat liver preparations with an IC₅₀ value of 55 μM and abolishes the rise in plasma H₂S in anaesthetized rats induced with hemorrhagic shock. At concentrations ranging from 25-100 mg/kg, PAG can reduce H₂S-associated inflammation in rodent models of pancreatitis, oedema, and endotoxemia.

DL-Propargylglycine Hydrochloride is used in preparation of tert-Butoxycarbonyl Azide.

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