Sulfo-CY-5.5 NHS ester tripotassium - CAS 2419286-92-1

Sulfo-CY-5.5 NHS ester (Sulfo-Cyanine5.5 NHS ester) tripotassium is a sulfonated far-red Cyanine5.5 fluorophore ester that reacts with amines. It is commonly used to label antibodies, proteins, and other molecules for in vivo NIR imaging [1].

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2419286-92-1

C44H42K3N3O16S4

1114.37

CC1(C(C2=CC(S(=O)([O-])=O)=C3)=C([N+](CCCCCC(ON4C(CCC4=O)=O)=O)=C1/C=C/C=C/C=C5C(C)(C6=C(C=CC7=C(S(=O)([O-])=O)C=C(S(=O)([O-])=O)C=C76)N/5C)C)C=CC2=C3S(=O)([O-])=O)C.[K+].[K+].[K+]

-20°C

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