2.
Name: 3-[[(1S)-1-[[(1S)-1-[[(2S)-3-methyl-2-[(4-nitrophenyl)amino]butanoyl]carbamoyl]ethyl]carbamoyl]ethyl]carbamoyl]propanoic acid
CAS: 61043-47-8



6.
Name: 4,5-dioxo-3,6-bis[(3-sulfophenyl)hydrazinylidene]naphthalene-2,7-disulfonic acid
CAS: 7572-33-0


