Biological Conjugation

Vari Fluor 594-dUTP (VF 594-dUTP) can replace its natural counterpart, dTTP, by enzymatic incorporation into DNA/cDNA. Vari Fluor 555-dUTP can be used to produce biotinylated DNA probes in a variety of assay applications.

DIBA-Cy5 is a fluorescent DIBA antagonist made up be DIBA-alkyne binding Cyanine5 fluorophores (Cy5) and polyethylene glycol (PEG) biomolecules. DIBA-Cy5 can serve as a fluorescent ligand, suitable for probe attachment through click chemistry. DIBA-Cy5 exerts a high binding affinity to type-2 mAChR (M2R) with the K_d value of 1.80 nM, can directly stain M2R receptors in the sinoatrial node of a mouse heart.

diSulfo-Cy3 alkyne is a water-soluble dye and a Click Chemistry reagent containing an alkyne group. Absorbance and emission of the dye are identical to Cy3 fluorophore. diSulfo-Cy3 alkyne can be used for the labeling of proteins, and even intact biological objects in water phase.

TAMRA hydrazide (6-isomer) is a click chemistry reagent that can be coupled to carbonyl compounds. The dye hydrazide in TAMRA hydrazide (6-isomer) labels carbonyl compounds such as aldehydes and ketones. TAMRA in TAMRA hydrazide (6-isomer) is a xanthene red fluorophore that reacts with terminal alkynes.

Trisulfo-Cy5-Alkyne is a click chemistry reagent containing an azide group. Trisulfo-Cy5-Alkyne can participate in copper-catalyzed Click Chemistry reactions. Trisulfo-Cy5-Alkyne is a near infrared (NIR) fluorescent dye.

Trisulfo-Cy5.5-Alkyne is a click chemistry reagent containing an azide group. Trisulfo-Cy5.5-Alkyne can participate in copper-catalyzed Click Chemistry reactions. Trisulfo-Cy5.5-Alkyne is a near infrared (NIR) fluorescent anthocyanin fluorescent dye.

Sulfo-Cy3-Tetrazine is a click chemistry reagent containing an tetrazine group. Sulfo-Cy3-Tetrazine is water soluble cyanine fluorescence dye, which is an inverse electron demand [4+2] cycloaddition that takes place between tetrazine and trans-cyclooctene or other strained olefin.

Sulfo-Cy5-Methyltetrazine is a click chemistry reagent containing a methyltetrazine group. Sulfo-Cy5-Methyltetrazine acts as a fluorophore linker for trans-cyclooctene-based labeling. Sulfo-Cy5-Methyltetrazine shows good stability at physiological pH and is also highly reactive towards cyclooctene.

Sulfo-Cy3-Methyltetrazine (figure 7 compound 5) is a click chemistry reagent containing methyltetrazine and a water-soluble dye. Sulfo-Cy3-Methyltetrazine shows good stability at physiological pH. Sulfo-Cy3-Methyltetrazine can be coupled to trans-cyclooctene and is also highly reactive towards cyclooctene.

FAM hydrazide, 6-isomer is a hydrazide derivative of fluorescein (FAM). FAM is a xanthene dye, a parent of fluorescein dye series. FAM hydrazide, 6-isomer can be used for the labeling of carbonyl compounds, aldehydes, and ketones.

Cy 3 Non-Sulfonated (Cyanine3) triethylamine is a cyanine (Cy) dye, and a fluorescent label with green channel for protein and nucleic acid. Cy 3 Non-Sulfonated triethylamine is a fluorescent photoproduct of Cyanine5 via photoconversion upon photoexcitation. Cy 3 Non-Sulfonated triethylamine can be used to high-density single-particle tracking in a living cell without using UV illumination and cell-toxic additives (Ex=470 nm; Em=515 nm and 565 nm nm).

Sulfo-cyanine3 azide sodium a water-soluble azide cyanine dye and fluorescent probe (Ex/Em=548/563 nm). Sulfo-cyanine3 azide sodium can be involved in synthesis of fused tricyclic heterocycles, produces immunostimulatory agents. It contains an azide group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing alkyne groups. It can also undergo ring strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing DBCO or BCN groups.

DANSYL-X, SE is an environmentally sensitive hydrophobic dye (Excitation 333 nM; Emission 518 nM). DANSYL-X, SE can increase fluorescence intensity in hydrophobic environment.

Cy5 DBCO chloride is an azide reaction probe and the addition of DBCO molecules allows the imaging of azide-labelled biomolecules by a copper-free "Click Chemistry" reaction. Cy5 DBCO (chloride) is a click chemistry reagent, it contains a DBCO group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.

Cyanine3 maleimide tetrafluoroborate is a specific labeling reagent for sulfhydryl groups with the λ_ex of 550 nm and λ_em of 580 nm. Cyanine3 maleimide tetrafluoroborate can be used for protein and peptide labeling.

Cyanine5.5 hydrazide, an analog of Cyanine5.5 fluorophore, is a near-infrared (NIR) fluorescent dye. Cyanine5.5 hydrazide is used for labeling of biomolecules through the condensation between the hydrazide groups and the carbonyl groups. (λ_ex=684 nm, λ_em=710 nm).

BODIPY 530/550 NHS ester can be used for the stain of protein. BODIPY 530/550 NHS ester can be used for fluorescence OIM (oblique illumination microscopic) image.

Coelenteramide is a oxidative product of Coelenterazine (HY-18743). Coelenteramide can form a complex with apoAequorin/Ca²⁺, which is known as blue fluorescent protein (BFP) and shows continuous weak luminescence with Coelenterazine like a luciferase. Coelenteramide can be used as an imaging agent.

Cyanine5 NHS ester bromide is a active compound, can be used to label amino groups in peptides, proteins, and oligonucleotides. Cyanine5 NHS ester bromide is a cyanine dye, fluorescence-labeling neurotensin (8-13) via arginine residues.

Tetramethylrhodamine-5-isothiocyanate is a potent fluorescent dye. Tetramethylrhodamine-5-isothiocyanate can be used for label PG-M3 antibody for rapid diagnosis of acute promyelocytic leukemia (APL). Tetramethylrhodamine-5-isothiocyanate can be used as probe to quantify in vivo the biodistribution of PLGA (poly(lactic-co-glycolic) acid) and PLGA/chitosan nanoparticles.