CAS No 141136-83-6 , (2S)-4-amino-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-amino-3-
hydroxypropanoyl]amino]-3-phenylpropanoyl]amino]-4-methylpentanoyl]
amino]-4-methylpentanoyl]amino]-5-(diaminomethylideneamino)pentanoyl]
amino]-4-oxobutanoic acid