AbBy Fluor 405 NHS Ester

Introduction

AbBy Fluor™ dyes are a versatile series of high-performance fluorophores designed for labeling biomolecules like proteins and nucleic acids. Spanning the visible to near-infrared spectrum, these water-soluble dyes retain their fluorescence properties across a broad pH range (4–10), making them ideal for biological applications. The NHS esters (succinimidyl esters) of AbBy Fluor™ dyes offer an efficient and convenient method for conjugating these dyes to biomolecules. They selectively bind to primary amines (R NH2) in peptides, proteins, and amine-modified nucleic acids, minimizing interactions with other functional groups such as aromatic amines, alcohols, and phenols. This selective reactivity ensures stable amide bond formation, comparable in strength to peptide bonds, resulting in robust and reliable conjugates. AbBy Fluor™ dyes are the preferred choice for researchers requiring consistent, high-quality labeling across various biological applications, offering unmatched performance and reliability.