3H-Indolium, 2-[3-(1,3-dihydro-1,3,3-trimethyl-2H-indol-2-ylidene)-1-propen-1-yl]-1-[6-[(2,5-dioxo-1-pyrrolidinyl)oxy]-6-oxohexyl]-3,3-dimethyl-, tetrafluoroborate(1-) (1:1)

Cy3 NHS ester is a reactive cyanine dye containing NHS group which enables labeling of amino-bearing biomolecules. This reagent is ideal for the labeling of soluble proteins, peptides, and oligonucleotides/DNA. Cyanine3 NHS ester is an analog of Cy3? NHS ester and can replace Alexa Fluor 546 as well as DyLight 549.

1-(6-((2,5-Dioxopyrrolidin-1-yl)oxy)-6-oxohexyl)-3,3-dimethyl-2-((E)-3-((E)-1,3,3-trimethylindolin-2-ylidene)prop-1-en-1-yl)-3H-indol-1-ium Tetrafluoroborate is a useful research chemical compound used as a substrate with surface that can load biomolecules for bio-chips.