... > chemical entity > molecular entity > main group molecular entity > p-block molecular entity > pnictogen molecular entity > nitrogen molecular entity > nitrogen oxide > dinitrogen trioxide

... > chemical entity > molecular entity > inorganic molecular entity > inorganic oxide > nitrogen oxide > dinitrogen trioxide

... > chemical entity > molecular entity > polyatomic entity > heteroatomic molecular entity > oxide > inorganic oxide > nitrogen oxide > dinitrogen trioxide

... > chemical entity > molecular entity > main group molecular entity > p-block molecular entity > chalcogen molecular entity > oxygen molecular entity > oxide > inorganic oxide > nitrogen oxide > dinitrogen trioxide