Cyclopentaneheptanoicacid, 2-(3-hydroxy-4-phenoxy-1-butenyl)-5-oxo-, [1a,2b(1E,3R*)]-(?à)-;Cyclopentaneheptanoic acid, 2-[(1E,3R)-3-hydroxy-4-phenoxy-1-butenyl]-5-oxo-,(1R,2R)-rel- (9CI); Cyclopentaneheptanoic acid,2-(3-hydroxy-4-phenoxy-1-butenyl)-5-oxo-, [1a,2b(1E,3R*)]-; M and B 28767