Cyanine 3 NHS ester (A270146)

Cyanine 3 NHS ester

Cyanine 3 NHS ester is a reactive dye for the labeling of amino-groups in biomolecules, an analog of Cy3® NHS ester. This reagent is ideal for the labeling of soluble proteins, peptides, and oligonucleotides/DNA. For delicate proteins consider using water-soluble sulfo-Cyanine 3 NHS ester which does not require use of any co-solvent. Cyanine 3 NHS ester is a replacement for NHS esters of Cy3® and DyLight 549.

555 nm

150000 M^-1cm^-1

570 nm

0.31

2632339-91-2

0.04

474.2

> 95% (by ¹H NMR and HPLC-MS).

C₃₄H₄₀N₃BF₄O₄

641.5 kDa

Red powder.

Poorly soluble in water (2.3 mM = 1.5 g/L). Soluble in organic solvents (DMF, DMSO, dichloromethane).

Shipped at room temperature. Upon delivery, store in the dark at -20°C. Avoid prolonged exposure to light. Desiccate.

This product is for research use only. It is not intended for diagnostic or therapeutic use.