Fluorescent Dyes

Fluorescent dyes are defined as compounds that strongly absorb and emit in the visible region. Fluorescent dyes are not considered by the Color Index as a separate, identifiable category of dye applications. Instead, commercially important textile fluorescent dyes, which are relatively few in number, are distributed among traditional application classes.

The earliest commercial development of fluorescent dyes was the use of rhodamine and related products to dye silk to unusually vibrant colors. Only a very limited number of fluorescent dyes reported to be suitable for application to natural protein and cellulose fibers are described in the color index. However, they are not widely used in textiles due to their poor light resistance. They are more suitable for fluorescent labeling of various biomolecules (antibodies, peptides, various proteins, etc.) for monitoring drug delivery to target tissues, imaging, and other processes.

As a professional supplier of high-efficiency dyes, Alfa Chemistry has the ability to provide customers with a comprehensive range of fluorescent dyes, including:

Cyanine Dyes Fluorescein Dyes BDP FL-PEG Other Fluorescent Dyes

Rhodamine Dyes Fluorescein-PEG Pyrene-PEG

Classification of Fluorescent Dyes

The techniques of fluorescent dye of molecules are divided broadly into the following categories:

• Fluorescein dyes

Fluorescein dyes include fluorescein isothiocyanate (FITC), hydroxy fluorescein (FAM), tetrachloro fluorescein (TET), etc. and their analogs.

• Rhodamine dyes

Rhodamine dyes include red rhodamine (RBITC), tetramethylrhodamine (TAMRA), rhodamine B (TRITC), etc. As compared to a number of other dyes in the market, rhodamines exhibit excellent photostability as well as a number of photophysical properties making them ideal for use as laser dyes, fluorescent probes, and pigments.

• Cyanine Dyes

Cyanine (Cy) dyes are resonant dyes characterized by polymethine dyes between nitrogen atoms (two atoms of nitrogen) with a delocalized charge. They usually consist of two heterocyclic ring systems, including Cy2, Cy3, Cy3B, Cy3.5, Cy5, Cy5.5, Cy7, cy7 NHS ester , cy3b NHS ester and their analogs.

• Biological Fluorophores

Biological fluorophores include green fluorescent protein, phycoerythrin, allophycocyanin, etc.

• Quantum Dots

Quantum dots (QDs) are man-made nanoscale crystals that exhibit unique optical and electronic properties, including the ability to transport electrons and emit light of various colors when exposed to UV light.

Features of Fluorescent Dyes

Alfa Chemistry is committed to becoming a first-class, low-carbon, environmentally friendly dye supplier. Our mission is to provide customers with full specifications of high-quality dyes. We are also constantly expanding our product database to meet the wide range of customer needs. You are welcomed to contact us for more fluorescent dyes.

It is important to note that our products are for research use only and are not for clinical use.