Aniline is an aromatic amine derived from aniline (benzene) with aromatic and amine functional groups. Among liquid crystal building blocks, anilines contribute to the formation of stable and ordered liquid crystal phases due to their hydrogen bonding ability. They are used to design LC materials with specific electrical and optical properties, making them suitable for applications such as LCDs and organic light-emitting diodes (OLEDs). The ability to modify the amine groups allows the tuning of LC properties, such as melting and clearing points, to meet specific application requirements. Anilines also play an important role in the synthesis of other LC compounds, acting as intermediates in complex chemical reactions.