Used as a key intermediate in the synthesis of charge-transport materials for organic light-emitting diodes (OLEDs) and perovskite solar cells. Its triphenylamine core with electron-donating methoxy and halogen substituents enhances hole-transport efficiency and film stability. Commonly employed in the development of photoresists and nonlinear optical materials due to its strong thermal stability and tunable electronic properties. Also serves as a building block for conjugated polymers in organic electronics.