Chemistry, part 2

organooxygen compound > oxacycle > pyrans > pyranone > 5-hydroxy-4-pentenoic acid d-lactone

... > chemical entity > molecular entity > polyatomic entity > molecule > cyclic compound > organic cyclic compound > organic heterocyclic compound > oxacycle > pyrans > pyranone > 5-hydroxy-4-pentenoic acid d-lactone

... > chemical entity > molecular entity > main group molecular entity > p-block molecular entity > carbon group molecular entity > organic molecular entity > organic molecule > organic cyclic compound > organic heterocyclic compound > oxacycle > pyrans > pyranone > 5-hydroxy-4-pentenoic acid d-lactone

... > chemical entity > molecular entity > polyatomic entity > molecule > organic molecule > organic cyclic compound > organic heterocyclic compound > oxacycle > pyrans > pyranone > 5-hydroxy-4-pentenoic acid d-lactone

... > chemical entity > molecular entity > polyatomic entity > molecule > cyclic compound > organic cyclic compound > organic heterocyclic compound > organic heteromonocyclic compound > pyrans > pyranone > 5-hydroxy-4-pentenoic acid d-lactone

... > chemical entity > molecular entity > main group molecular entity > p-block molecular entity > carbon group molecular entity > organic molecular entity > organic molecule > organic cyclic compound > organic heterocyclic compound > organic heteromonocyclic compound > pyrans > pyranone > 5-hydroxy-4-pentenoic acid d-lactone

... > chemical entity > molecular entity > polyatomic entity > molecule > organic molecule > organic cyclic compound > organic heterocyclic compound > organic heteromonocyclic compound > pyrans > pyranone > 5-hydroxy-4-pentenoic acid d-lactone