... > chemical entity > molecular entity > main group molecular entity > p-block molecular entity > carbon group molecular entity > organic molecular entity > olefinic compound > enone > prostaglandins A > prostaglandin A2

... > chemical entity > molecular entity > main group molecular entity > p-block molecular entity > chalcogen molecular entity > oxygen molecular entity > organooxygen compound > carbonyl compound > ketone > alpha,beta-unsaturated ketone > enone > prostaglandins A > prostaglandin A2

... > chemical entity > molecular entity > main group molecular entity > p-block molecular entity > chalcogen molecular entity > organochalcogen compound > organooxygen compound > carbonyl compound > ketone > alpha,beta-unsaturated ketone > enone > prostaglandins A > prostaglandin A2

... > chemical entity > molecular entity > main group molecular entity > p-block molecular entity > carbon group molecular entity > organic molecular entity > heteroorganic entity > organochalcogen compound > organooxygen compound > carbonyl compound > ketone > alpha,beta-unsaturated ketone > enone > prostaglandins A > prostaglandin A2

... > chemical entity > molecular entity > main group molecular entity > p-block molecular entity > carbon group molecular entity > organic molecular entity > organic molecule > organic oxo compound > carbonyl compound > ketone > alpha,beta-unsaturated ketone > enone > prostaglandins A > prostaglandin A2

... > chemical entity > molecular entity > polyatomic entity > molecule > organic molecule > organic oxo compound > carbonyl compound > ketone > alpha,beta-unsaturated ketone > enone > prostaglandins A > prostaglandin A2

... > chemical entity > molecular entity > main group molecular entity > p-block molecular entity > carbon group molecular entity > organic molecular entity > lipid > fatty acid derivative > icosanoid > prostanoid > prostaglandin > prostaglandins A > prostaglandin A2