CAS No 868844-74-0 , (4S)-4-acetamido-5-[[(2S)-1-[[(2S)-1-[[(2S)-5-amino-1-[[(2S)-1-[[(2S)-1-
[[(2S)-1-[[(2S)-1-amino-3-carboxy-1-oxopropan-2-yl]amino]-1-oxopropan-2-
yl]amino]-5-(diaminomethylideneamino)-1-oxopentan-2-yl]amino]-5-
(diaminomethylideneamino)-1-oxopentan-2-yl]amino]-1,
5-dioxopentan-2-yl]amino]-4-methylsulfanyl-1-oxobutan-2-yl]amino]-4-
carboxy-1-oxobutan-2-yl]amino]hex-5-enoic acid