... > chemical entity > molecular entity > main group molecular entity > p-block molecular entity > chalcogen molecular entity > sulfur molecular entity > organosulfur compound > organosulfonic anhydride > triflic anhydride

... > chemical entity > molecular entity > main group molecular entity > p-block molecular entity > chalcogen molecular entity > organochalcogen compound > organosulfur compound > organosulfonic anhydride > triflic anhydride

... > chemical entity > molecular entity > main group molecular entity > p-block molecular entity > carbon group molecular entity > organic molecular entity > heteroorganic entity > organochalcogen compound > organosulfur compound > organosulfonic anhydride > triflic anhydride