89014-16-4 Glycine, N-(S-(4,4'-bis(acetylamino)(1,1'-biphenyl)-3-yl)-N-L-gamma-glutamyl-L-cysteinyl)- N-(S-(4,4'-Bis(acetylamino)(1,1'-biphenyl)-3-yl)-N-L-gamma-glutamyl-L-cysteinyl)glycine