2. Fluorescent Dye
  3. Biological Conjugation

Biological Conjugation

 
Cat. No. Product Name CAS No. Purity Chemical Structure
  • HY-66019
    FITC 3326-32-7 98.60%
    FITC (Fluorescein Isothiocyanate), is one of the green fluorescein derivatives widely used in biology. FITC has the characteristics of high absorptivity and excellent fluorescence quantum yield. The isothiocyanate group of FITC can be combined with amino, sulfhydryl, imidazole, tyrosyl, carbonyl and other groups on the protein, so as to achieve protein labeling including antibodies and lectins. In addition to its use as a protein marker, FITC can also be used as a fluorescent protein tracer to rapidly identify pathogens by labeling antibodies, or for microsequencing of proteins and peptides (HPLC). The maximum excitation wavelength of FITC is 494 nm. Once excited, it fluoresces yellow-green at a maximum emission wavelength of 520 nm. In addition, FITC is also a hapten that can induce contact hypersensitivity (CHS) and induce an atopic dermatitis model.
    FITC
  • HY-D0924
    Cy5.5 210892-23-2 99.88%
    Cy5.5 is a CY dye. CY, short for Cyanine, is a compound consisting of two nitrogen atoms connected by an odd number of methyl units. Cyanine compounds have the characteristics of long wavelength, adjustable absorption and emission, high extinction coefficient, good water solubility and relatively simple synthesis. CY dyes are of en used for the labeling of proteins, antibodies and small molecular compounds. For the labeling of protein antibodies, the combination can be completed through a simple mixing reaction. Below, we introduce the labeling method of protein antibody labeling, which has certain reference significance.
    Cy5.5
  • HY-D0821
    CY5 146368-11-8 99.39%
    CY5 is a CY dye. CY, short for Cyanine, is a compound consisting of two nitrogen atoms connected by an odd number of methyl units. Cyanine compounds have the characteristics of long wavelength, adjustable absorption and emission, high extinction coefficient, good water solubility and relatively simple synthesis. CY dyes are of en used for the labeling of proteins, antibodies and small molecular compounds. For the labeling of protein antibodies, the combination can be completed through a simple mixing reaction. Below, we introduce the labeling method of protein antibody labeling, which has certain reference significance.
    CY5
  • HY-D1614
    BODIPY 493/503 methyl bromide 216434-81-0 98.0%
    BODIPY493/503 methyl bromide is a BODIPY dye. BODIPY dye is a small molecule dye with strong ultraviolet absorption ability, its fluorescence peak is relatively sharp, and the quantum yield is high. They are relatively insensitive to the polarity and pH of the environment and are relatively stable under different physiological conditions. Due to its structural asymmetry, BODIPY derives a variety of structural products. BODIPY lipid droplet dyes can well pass through the cell membrane into the cell, and localize the neutral lipids in the cell to specifically stain the lipid droplets, which can be used for labeling of live cells and fixed cells. Maximum excitation/emission wavelength: 493/503 nm.
    BODIPY 493/503 methyl bromide
  • HY-D0819
    CY5-SE 146368-14-1 98.10%
    Cy5-SE (Cy5 NHS Ester) is a reactive dye for the labeling of amino-groups in peptides, proteins, and oligonucleotides. This dye requires small amount of organic co-solvent (such as DMF or DMSO) to be used in labeling reaction. This reagent is ideal for very cost-efficient labeling of soluble proteins, as well as all kinds of peptides and oligonucleotides. This reagent also works well in organic solvents for small molecule labeling. Excitation (nm):649, Emission (nm): 670.
    CY5-SE
  • HY-D3014
    Labelling Kits Centrifugation-Based Rapid Desalting Column (5KD)
    The Labeling Kits Centrifugation-Based Rapid Desalting Column (5KD) is a laboratory tool for rapid desalting, particularly suitable for the purification and concentration of proteins and other biological molecules. This product utilizes centrifugal force and passes through a specific filter membrane (with a molecular weight cut-off of 5KD) to effectively remove salts and other small molecule impurities from the sample.
    Labelling Kits Centrifugation-Based Rapid Desalting Column (5KD)
  • HY-D2956
    BC-GLA-NHS
    BC-GLA-NHS (CLIP-GLA-NHS) is a NHS-labeled CLIP tag, which is an amine-reactive crosslinker and can achieve site-specific protein labeling. The NHS ester of BC-GLA-NHS reacts with the primary amine of the target molecule (such as antibodies, quantum dots) in a pH 7.5-8.5 buffer solution to form a stable amide bond. After coupling, the BC molecule undergoes a nucleophilic substitution reaction with the active site (Cys) of the CLIP-tagged fusion protein, releasing benzylcytosine and forming an irreversible thioether bond, achieving covalent labeling. BC-GLA-NHS can be used for click chemistry labeling.
    BC-GLA-NHS
  • HY-DY1088
    Fluorescein-5-maleimide (solution) 75350-46-8
    Fluorescein-5-maleimide (solution) (N-(5-Fluoresceinyl)maleimide (solution)) is a fluorescent dye. Fluorescein-5-maleimide can be used to detect the redox state of thiols in eukaryotic cells. Fluorescein-5-maleimide can label peptides and is used to detect negatively charged nanoparticles. Fluorescein-5-maleimide can also label actin to explore its interaction with cardiac myosin-binding protein C (cMyBP-C), which helps in developing small molecule modulators for heart failure. Fluorescein-5-maleimide can screen mutant proteins that contain cysteine residues. The excitation wavelength of Fluorescein-5-maleimide is 494 nm, and the emission wavelength is 519 nm.

    Solvent and concentration: DMSO: 10 mM
    Fluorescein-5-maleimide (solution)
  • HY-143218
    TPE-MI 1245606-71-6 98.93%
    TPE-MI (Tetraphenylethene maleimide) is a thiol probe for measuring unfolded protein load and proteostasis in cells (the excitation wavelength is 350 nm and the emission wavelength is 470 nm). TPE-MI can report imbalances in proteostasis in induced pluripotent stem cell models of Huntington disease, as well as cells transfected with mutant Huntington exon 1 before the formation of visible aggregates. TPE-MI also detects protein damage following dihydroartemisinin research of the malaria parasites Plasmodium falciparum .
    TPE-MI
  • HY-D0822
    CY3 146368-13-0 99.87%
    Cy3 (Sulfo-Cyanine3) is an orange-fluorescent label for protein and nucleic acid (λex=554, λem=568).
    CY3
  • HY-D0098
    Fluorescein-5-maleimide 75350-46-8 99.48%
    Fluorescein-5-maleimide (N-(5-Fluoresceinyl)maleimide) is a fluorescent dye. Fluorescein-5-maleimide can be used to detect the redox state of thiols in eukaryotic cells. Fluorescein-5-maleimide can label peptides and is used to detect negatively charged nanoparticles. Fluorescein-5-maleimide can also label actin to explore its interaction with cardiac myosin-binding protein C (cMyBP-C), which helps in developing small molecule modulators for heart failure. Fluorescein-5-maleimide can screen mutant proteins that contain cysteine residues. The excitation wavelength of Fluorescein-5-maleimide is 494 nm, and the emission wavelength is 519 nm.
    Fluorescein-5-maleimide
  • HY-D1808
    Vari Fluor 488-Streptavidin
    Vari Fluor 488-Streptavidin is a dye marker of Vari Fluor-streptavidin consisting of labeling streptavidin with a Vari Fluor series of fluorescent probes. Streptavidin is a high-affinity tetramer protein, each tetramer consisting of four identical streptavidin subunits. Streptavidin binds to biotin specifically via a reversible non-covalent effect. Streptavidin can achieve rapid and efficient detection of biotin markers, and is often used in immunofluorescence (IF), enzyme-linked immunosorbent assay (ELISA), immunohistochemical staining (IFH), in situ hybridization (ISH) and other experiments. Ex/Em=490 nm/515 nm.
    Product Concentration: 0.8 mg/mL
    Vari Fluor 488-Streptavidin
  • HY-112498
    Cy3 NHS ester 1393363-07-9 99.45%
    Cy3 NHS ester is a CY dye. CY, short for Cyanine, is a compound consisting of two nitrogen atoms connected by an odd number of methyl units. Cyanine compounds have the characteristics of long wavelength, adjustable absorption and emission, high extinction coefficient, good water solubility and relatively simple synthesis. CY dyes are of en used for the labeling of proteins, antibodies and small molecular compounds. For the labeling of protein antibodies, the combination can be completed through a simple mixing reaction. Below, we introduce the labeling method of protein antibody labeling, which has certain reference significance.
    Cy3 NHS ester
  • HY-100041
    Bromobimane 71418-44-5 99.31%
    Bromobimane (Monobromobimane) is a nonfluorescent and converts into fluorescent products when reacts with thiols. Bromobimane has potential applications in labeling thiols.
    Bromobimane
  • HY-D1540
    Cyanine5.5 amine 2097714-45-7 99.28%
    Cyanine5.5 amine (Cy 5.5 amine), a Cy5.5 Analogue, is a near-infrared (NIR) fluorescent dye (Ex=648 nm, Em=710 nm). Cyanine5.5 amine can be used in the preparation of Cy5.5-labeled nanoparticles, which can be tracked and imaged with low fluorescence background using confocal microscopy.
    Cyanine5.5 amine
  • HY-D1805
    Vari Fluor 647-Streptavidin
    Vari Fluor 647-Streptavidin is a dye marker of Vari Fluor-streptavidin consisting of labeling streptavidin with a Vari Fluor series of fluorescent probes. Streptavidin is a high-affinity tetramer protein, each tetramer consisting of four identical streptavidin subunits. Streptavidin binds to biotin specifically via a reversible non-covalent effect. Streptavidin can achieve rapid and efficient detection of biotin markers, and is often used in immunofluorescence (IF), enzyme-linked immunosorbent assay (ELISA), immunohistochemical staining (IFH), in situ hybridization (ISH) and other experiments. Ex/Em=650 nm/665 nm.
    Product Concentration: 0.8 mg/mL
    Vari Fluor 647-Streptavidin
  • HY-D1583
    Cyanine5 DBCO hexafluorophosphate 2360411-64-7 99.65%
    Cyanine5 DBCO (DBCO-Cy5) hexafluorophosphate is a low-toxicity azide reactive probe (NIR fluorescent dye), for imaging azide-labeled biomolecules via a copper-free "click-through" reaction. Cyanine5 DBCO hexafluorophosphate has no apparent cytotoxicity or animal toxicity and shows no damage to the physiological functions of cells other than the target cells (azide-labeled cells). Cyanine5 DBCO hexafluorophosphate can be used to label and track cells in vitro and in vivo (Ex=635 nm, Em=650-700 nm).
    Cyanine5 DBCO hexafluorophosphate
  • HY-130412
    FlAsH-EDT2 212118-77-9 ≥99.0%
    FlAsH-EDT2 is a protein labeling reagent. FlAsH-EDT2 binds to Cys4 with high affinity and emits fluorescence. FlAsH-EDT2 can cross the cell membrane and enter the interior of the cell. FlAsH-EDT2 can only be used for labeling proteins with high concentration.
    FlAsH-EDT2
  • HY-D1068
    Cy5-DBCO 1564286-24-3 99.86%
    Cy5-DBCO (DBCO-Sulfo-Cy5) is a near-infrared (NIR)red fluorescent dye with λabsand λem of 646nm and 670 nm, respectively. Cy5-DBCO (DBCO-Sulfo-Cy5) is not suitable for staining intracellular components of permeabilezed cell, it may exhibits a high background. Cy5-DBCO is a click chemistry reagent, it contains a DBCO group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.
    Cy5-DBCO
  • HY-D0832
    CY5-N3 1621101-43-6 98.07%
    CY5-N3 (Sulfo-Cyanine5-azide) is a Cy5-azide, which is a fluorescent dye (ex/em: 646/662 nm). CY5-N3 is cell membrane permeable and can be used for live cell imaging. CY5-N3 can be used in cell imagine by Click reaction.
    CY5-N3
Cat. No. Product Name CAS No. Purity Chemical Structure