B4 H32 C4 N4

B₄H₃₂C₄N₄ is a boron-carbon-nitrogen ceramic compound combining light elements to achieve low density with potential for high thermal and chemical stability. This material belongs to the family of boron nitride and boron carbide derivatives; it remains largely in the research and development phase, with limited commercial production, but represents exploration into ultra-lightweight ceramics for aerospace and high-temperature applications where conventional dense ceramics are impractical.