Which is the "real" RU-486? [2]

From a Pubchem search (search term: RU-486, 20 results, 18 RO5):

Which is the "real" RU-486?

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These images are from ChEBI: http://www.ebi.ac.uk/chebi/searchId.do?chebiId=363012 and http://www.ebi.ac.uk/chebi/searchId.do?chebiId=363012.