chemical entity > molecular entity > isotopically modified compound > ((18)O)water

... > chemical entity > molecular entity > inorganic molecular entity > inorganic hydride > chalcogen hydride > oxygen hydride > water > ((18)O)water

... > chemical entity > molecular entity > polyatomic entity > heteroatomic molecular entity > hydrides > inorganic hydride > chalcogen hydride > oxygen hydride > water > ((18)O)water

... > chemical entity > molecular entity > main group molecular entity > s-block molecular entity > hydrogen molecular entity > hydrides > inorganic hydride > chalcogen hydride > oxygen hydride > water > ((18)O)water

... > chemical entity > molecular entity > main group molecular entity > p-block molecular entity > chalcogen molecular entity > chalcogen hydride > oxygen hydride > water > ((18)O)water

... > chemical entity > molecular entity > polyatomic entity > heteroatomic molecular entity > hydrides > mononuclear parent hydride > water > ((18)O)water

... > chemical entity > molecular entity > main group molecular entity > s-block molecular entity > hydrogen molecular entity > hydrides > mononuclear parent hydride > water > ((18)O)water

... > chemical entity > molecular entity > inorganic molecular entity > inorganic hydroxy compound > water > ((18)O)water

... > chemical entity > molecular entity > polyatomic entity > heteroatomic molecular entity > hydroxides > inorganic hydroxy compound > water > ((18)O)water

... > chemical entity > molecular entity > main group molecular entity > s-block molecular entity > hydrogen molecular entity > hydroxides > inorganic hydroxy compound > water > ((18)O)water

... > chemical entity > molecular entity > main group molecular entity > p-block molecular entity > chalcogen molecular entity > oxygen molecular entity > hydroxides > inorganic hydroxy compound > water > ((18)O)water