CAS No 145238-45-5 , methylidene-[2-[[2-[(2-methylpropan-2-yl)oxycarbonylamino]-3-(4-
nitrophenyl)propanoyl]amino]acetyl]-[[[2-[[2-[(2-methylpropan-2-yl)
oxycarbonylamino]-3-(4-nitrophenyl)propanoyl]amino]acetyl]amino]methyl]
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