Properties:... more properties and specification on (2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-Amino-4-methyl-pentanoyl]am ino]-5-(diaminomethylideneamino)pentanoyl]amino]-5-(diaminomethylidene amino)pentanoyl]amino]-4-carbamoyl-butanoyl]amino]-3-pheny |