2-(2-Naphthyl)ethylamine is an organic compound featuring a naphthalene ring linked to an ethylamine group. It is a primary amine with the molecular formula C₁₂H₁₃N. This compound serves as a versatile building block in organic synthesis, particularly valued for its aromatic amine functionality. Its primary application is in the field of materials science, where it acts as a key precursor for the synthesis of organic light-emitting diodes (OLEDs) and other organic electronic materials. The naphthalene core provides a rigid, conjugated structure essential for charge transport and luminescence properties, while the amine group allows for further functionalization and incorporation into larger molecular architectures, such as hole-transporting materials (HTMs) or emissive layer components. As a synthetic intermediate, it is used in the preparation of various pharmaceuticals, dyes, and functional materials. Standard safety precautions for handling amines should be observed, including the use of personal protective equipment due to its potential irritant properties.