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Cy3-NHS ester | CAS 146368-16-3

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Product Introduction

Cy3-NHS ester is an orange-fluorescent probe that is reactive with primary amines on biomolecules such as proteins and nucleic acids.

Synonyms	Sulfo-Cyanine3, SE (ethyl);Cyanine 3, SE; 2-[3-[1-[6-[(2,5-Dioxo-1-pyrrolidinyl)oxy]-6-oxohexyl]-1,3-dihydro-3,3-dimethyl-5-sulfo-2H-indol-2-ylidene]-1-propen-1-yl]-1-ethyl-3,3-dimethyl-5-sulfo-3H-indolium, inner salt
Purity	98%
Canonical SMILES	CCN1C2=C(C=C(C=C2)S(=O)(=O)[O-])C(C1=CC=CC3=[N+](C4=C(C3(C)C)C=C(C=C4)S(=O)(=O)O)CCCCCC(=O)ON5C(=O)CCC5=O)(C)C
InChI	InChI=1S/C35H41N3O10S2/c1-6-36-27-16-14-23(49(42,43)44)21-25(27)34(2,3)29(36)11-10-12-30-35(4,5)26-22-24(50(45,46)47)15-17-28(26)37(30)20-9-7-8-13-33(41)48-38-31(39)18-19-32(38)40/h10-12,14-17,21-22H,6-9,13,18-20H2,1-5H3,(H-,42,43,44,45,46,47)
InChIKey	SOVMUUCAZOFIQP-UHFFFAOYSA-N

ε, L⋅mol-1⋅cm-1	150000
Fluorescence Quantum Yield	0.31
Excitation	555 nm
Emission	570 nm
Storage	24 months after receival at -20°C in the dark. Transportation: at room temperature for up to 3 weeks. Avoid prolonged exposure to light. Desiccate.

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