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... > chemical entity > molecular entity > main group molecular entity > p-block molecular entity > chalcogen molecular entity > organochalcogen compound > organooxygen compound > carbonyl compound > ketone > oxo steroid > 20-oxo steroid > Pregna-4,16-diene-3,11,20-trione

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... > 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 > oxo steroid > 20-oxo steroid > Pregna-4,16-diene-3,11,20-trione

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... > chemical entity > molecular entity > main group molecular entity > p-block molecular entity > carbon group molecular entity > organic molecular entity > lipid > steroid > oxo steroid > 20-oxo steroid > Pregna-4,16-diene-3,11,20-trione

... > 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 polycyclic compound > steroid > oxo steroid > 20-oxo steroid > Pregna-4,16-diene-3,11,20-trione

... > chemical entity > molecular entity > polyatomic entity > molecule > organic molecule > organic cyclic compound > organic polycyclic compound > steroid > oxo steroid > 20-oxo steroid > Pregna-4,16-diene-3,11,20-trione

... > chemical entity > molecular entity > polyatomic entity > molecule > cyclic compound > organic cyclic compound > organic polycyclic compound > steroid > oxo steroid > 20-oxo steroid > Pregna-4,16-diene-3,11,20-trione

... > chemical entity > molecular entity > polyatomic entity > molecule > cyclic compound > polycyclic compound > organic polycyclic compound > steroid > oxo steroid > 20-oxo steroid > Pregna-4,16-diene-3,11,20-trione