(Phenylhydrazono)malononitrile is primarily used in organic synthesis as a versatile intermediate for the preparation of various heterocyclic compounds. Its application extends to the development of pharmaceuticals, where it serves as a key building block in the synthesis of biologically active molecules. Additionally, it is utilized in the production of dyes and pigments due to its ability to form stable, colored complexes. In material science, this compound is explored for its potential in creating advanced materials with specific electronic properties. Its reactivity with different organic and inorganic substances makes it a valuable component in research and industrial processes aimed at developing new chemical entities and functional materials.