N-Allylthiourea is primarily used as a corrosion inhibitor in various industrial applications. It is effective in protecting metals, particularly copper and its alloys, from corrosion in water systems, including cooling towers and boilers. The compound forms a protective layer on the metal surface, preventing oxidative damage caused by exposure to water and oxygen.

In addition to its role in corrosion prevention, N-Allylthiourea is utilized in biochemical research as an inhibitor of urease, an enzyme that catalyzes the hydrolysis of urea. This property makes it valuable in studies focused on understanding enzyme mechanisms and developing treatments for conditions related to urease activity.

Furthermore, it finds application in the synthesis of organic compounds, serving as a reagent or intermediate in the production of various chemicals. Its unique structure allows it to participate in reactions that introduce thiourea groups into target molecules, which can be useful in pharmaceuticals and agrochemicals.