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Conjugation and labelingCyanine
Cyanine dyes are a type of fluorescent dye based on cyanine structure, with excellent near-infrared optical properties and adjustable spectral characteristics. Their unique molecular structure makes them widely used in biological imaging, in vivo detection and molecular probes. Due to the characteristics of low scattering and high tissue penetration in the near-infrared region, cyanine dyes are particularly suitable for deep tissue imaging and in vivo tracing studies.
- Cyanine3 NHS ester tetrafluoroborateT2058632632339-91-2Cyanine3 NHS Ester Tetrafluoroborate is a fluorescent labeling reagent containing Cy3 fluorophore, NHS ester active group and tetrafluoroborate stabilizer. Cyanine3 NHS Ester Tetrafluoroborate can react with amino groups on biological molecules and is used in biological analysis fields such as protein, antibody, nucleic acid labeling and cell imaging.
- $312
SizeQTY - Cyamine3.5 NHS esterT2058622231670-85-0Cyamine3.5 NHS ester is a squaraine dye utilized in the development of fluorescent probes and biological labeling, characterized by its intermediate wavelength fluorescence emission properties. Specially designed for reactions with amino groups to form stable covalent bonds, it is ideal for labeling biomolecules. Ex Em(nm)=591 604.
- $195
SizeQTY - Cyanine5.5 NHS ester (ethyl)T2058571376434-73-9Cyanine5.5 NHS Ester (ethyl) is a far-red fluorescent dye with an N-hydroxysuccinimide (NHS) active group that can react with primary amines (-NH₂) in proteins, peptides or other biological molecules to achieve specific labeling. It is widely used in the fields of biological imaging and fluorescence analysis.
- $195
SizeQTY - Cyanine5.5 hydrazideT2058592280971-80-2Cyanine5.5 hydrazide is a far-infrared fluorescent dye containing a hydrazine (-NHNH₂) functional group. It can undergo condensation reaction with biological molecules containing carbonyl (-CO-) to form a stable hydrazone bond (-CO-NHNH-CO-). It is suitable for labeling biological molecules such as proteins and polysaccharides, and is widely used in the fields of biological imaging and analysis.
- $195
SizeQTY - Cyanine7 NHS esterT205853Cyanine7 NHS ester is a fluorescent probe widely utilized in biomarking and bioimaging applications. It has excitation/emission wavelengths (Ex/Em) of 740/770 nm.
- $195
SizeQTY - Cyanine5-C6-DBCO HexafluorophosphateT2058522360411-64-7Cyanine5-C6-DBCO is a low-toxicity azide-reactive probe (near-infrared fluorescent dye) used for imaging azide-labeled biomolecules via a copper-free click reaction. Its excitation emission wavelengths are 647 668 nm.
- $228
SizeQTY - Cyanine7 maleimide(Cyclohexene)T2058552120392-49-4Cyanine7 maleimide (Cyclohexene) is a near-infrared fluorescent dye with a maleimide group that can be used to label biomolecules containing thiol (-SH) groups and is widely used in the field of biological imaging and analysis.
- $195
SizeQTY - MMTr-Cy3-OHT205866212563-57-0MMTr-Cy3-OH is a chemically modified Cy3 fluorescent dye suitable for oligonucleotide synthesis, protein or antibody labeling and peptide modification. The MMTr protecting group ensures the stability of the intermediates, while the hydroxyl group facilitates subsequent reactions.
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SizeQTY - Cy5 DiMeT20586548221-03-0Anthocyanin CY5 DIME, also known as Cy5 DIME or Cyanine5 DIME, is a nitrogen-containing heterocyclic organic fluorescent dye. It belongs to the anthocyanin dye series, has far-red fluorescence characteristics, high extinction coefficient, strong fluorescence brightness, and is insensitive to pH changes. It is widely used in the field of biomedical research, especially in cell imaging, protein labeling, and gene expression analysis.
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SizeQTY - Cyanine3.5 carboxylic acid chlorideT2058611802928-88-6Cyanine3.5 carboxylic acid chloride is an activated near-infrared fluorescent dye. Its carboxylic acid group is converted into an acyl chloride (-COCl) form, which has higher reactivity. It can react quickly with the amine group (-NH₂) in biological molecules to generate a stable amide bond (-CO-NH-). It is suitable for labeling biological molecules such as proteins and peptides, and has a wide range of applications in biological imaging and analysis.
- $195
SizeQTY - cyanine7 maleimideT205854Cyanine7 amine is effective for labeling biomolecules such as proteins, nucleic acids, and cells, facilitating localization, tracking, and detection in various bioanalytical techniques. It provides fluorescent signals for visualization. The excitation/emission wavelengths (Ex/Em) are 750/773 nm.
- $195
SizeQTY - Cyanine3 carboxylic acid chlorideT2058481032678-01-5Cyanine3 carboxylic acid is a non-toxic red fluorescent dye that serves as a non-reactive fluorophore for experimental controls and calibration. It can also be conjugated with targeting active molecules to create fluorescent probes for rapid detection of molecular reactions. [Ex Em(nm)=550 570nm]
- $30
SizeQTY - Cyanine3.5 carboxylic acidT2058601144107-79-8Cyanine3.5 carboxylic acid is a near-infrared fluorescent dye with a carboxylic acid group (-COOH). It can undergo condensation reaction with biological molecules containing amine groups (-NH₂) to form amide bonds (-CO-NH-), thereby achieving specific labeling of biological molecules such as proteins and peptides. It is widely used in the fields of biological imaging and fluorescence analysis.
- $195
SizeQTY - Cyanine7 alkyne(Cyclohexene)T2058561954687-62-7Cyanine7 alkyne (Cyclohexene) is a near-infrared fluorescent dye containing an alkynyl (-C≡C-) functional group. It is suitable for specific binding to biological molecules containing an azide group (-N₃) through click chemistry and is commonly used in biolabeling, imaging and analysis.
- $139
SizeQTY - Cyanine5.5 alkyne chlorideT2058581628790-37-3Cyanine5.5 alkyne chloride is a far-infrared fluorescent dye containing an alkynyl (-C≡C-) functional group. It is suitable for covalent binding with azide (-N₃) modified biomolecules via click chemistry. Its chlorinated form may be used for labeling applications in specific chemical environments and is widely used in the fields of bioimaging and fluorescence detection.
- $85
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