N,N'-BIS(TRIFLUOROACETYL) L-CYSTINE | N,N'-BIS(TRIFLUOROACETYL)-L-CYSTEINE |
3-[3-hydroxy-3-oxo-2-[(2,2,2-trifluoroacetyl)amino]propyl]disulfanyl-2-[(2,2,2-trifluoroacetyl)amino]propanoic acid | 3-[3-hydroxy-3-oxo-2-(2,2,2-trifluoroethanoylamino)propyl]disulfanyl-2-(2,2,2-trifluoroethanoylamino)propanoic acid |
3-[3-hydroxy-3-keto-2-[(2,2,2-trifluoroacetyl)amino]propyl]disulfanyl-2-[(2,2,2-trifluoroacetyl)amino]propionic acid |