1,1'-(disulfanediylbis(ethane-2,1-diyl))bis(4-phenylimidazolidin-2-one); Bis(2-(2-oxo-4-phenylimidazolidin-1-yl)ethyl) disulfide; Levamisole hydrochloride specified impurity E [EP]; 2-Imidazolidinone, 1,1'-(dithiodi-2,1-ethanediyl)bis(4-phenyl-; Bis(2-(2-oxo-4-phenylimidazolidin-1-yl)ethyl) disulfide, (+/-)-; 1,1'-((Disulfane-1,2-diyl)bis(ethylene))bis((4RS)-4-phenylimidazolidin-2-one)
