Sulfo Cy5.5-hydrazide sodium

SulfoCy5.5-hydrazide sodium is a derivative of the Cy5.5 dye that contains a hydrazine functional group. The hydrazide group in SulfoCy5.5-hydrazide sodium can react with molecules containing aldehyde or ketone groups to form a hydrazone linkage, resulting in a covalent bond.

CC1(C(=[N+](C2=C1C3=C(C=C2)C=C(C=C3)S(=O)(=O)[O-])CCCCCC(=O)NN)/C=C/C=C/C=C\4/C(C5=C(N4CCCCS(=O)(=O)[O-])C=CC6=C5C=CC(=C6)S(=O)(=O)[O-])(C)C)C.[Na+].[Na+]