chemical entity > molecular entity > inorganic molecular entity > inorganic radical > chlorine trioxide

chemical entity > molecular entity > radical > inorganic radical > chlorine trioxide

... > chemical entity > molecular entity > inorganic molecular entity > inorganic oxide > halogen oxide > chlorine oxide > chlorine trioxide

... > chemical entity > molecular entity > polyatomic entity > heteroatomic molecular entity > oxide > inorganic oxide > halogen oxide > chlorine oxide > chlorine trioxide

... > chemical entity > molecular entity > main group molecular entity > p-block molecular entity > chalcogen molecular entity > oxygen molecular entity > oxide > inorganic oxide > halogen oxide > chlorine oxide > chlorine trioxide

... > chemical entity > molecular entity > main group molecular entity > p-block molecular entity > halogen molecular entity > halogen oxide > chlorine oxide > chlorine trioxide