CAS No 55207-83-5 , (3S)-4-[[(2S)-4-amino-1-[[(1S)-1-carboxyethyl]amino]-1,
4-dioxobutan-2-yl]amino]-3-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-
amino-4-methylpentanoyl]amino]-3-hydroxypropanoyl]amino]-5-
(diaminomethylideneamino)pentanoyl]amino]-4-methylpentanoyl]amino]-3-
phenylpropanoyl]amino]-4-oxobutanoic acid