Protein Labeling Reagents
Thermo Scientific™ Pierce™ Iodination Tubes
Reliably label (iodinate) proteins and peptides with iodine-125 using glass test tubes that are pre-coated (activated) with iodination reagent.
Jackson Immuno Research Labs Fluorescein (FITC)-ChromPure Human IgG whole molecule
Fluorescein (FITC)-ChromPure Human IgG whole molecule
Apexbio Technology LLC Cy5 maleimide (non-sulfonated), 25mg. Cas: MFCD: NA. Labeling of cysteine residues, as well as other thiolated molecules
Cy5 maleimide is a mono-reactive dye for selectively labeling peptides and proteins which couples with thiol groups. Other sizes are available. Please inqury us for quote.
Apexbio Technology LLC Cy5 maleimide (non-sulfonated), 5mg. Cas: MFCD: NA. Labeling of cysteine residues, as well as other thiolated molecules
Cy5 maleimide is a mono-reactive dye for selectively labeling peptides and proteins which couples with thiol groups. Other sizes are available. Please inqury us for quote.
Apexbio Technology LLC Cy3 maleimide (non-sulfonated), 5mg. Cas: MFCD: NA. Labeling of cysteine residues, as well as other thiolated molecules
Cy3 maleimide is a selective and efficient fluorophore dye with low aqueous solubility. This labeling reagent can be used to attach Cy3 fluorophore to proteins and peptides which contain cysteine residues, as well as to other thiolate molecules (such as thiol-containing oligonucleotides). Before the labeling reactions, Cystines should be reduced with TCEP (tris-carboxyethylphosphine). For biomolecule labeling, the labeling reagent has low aqueous solubility, using of organic co-solvent to dissolve this molecular is necessary for efficient reaction. First, Cyanine dye should be dissolved in organic solvent and then added to a solution of biomolecule in appropriate aqueous buffer. Other sizes are available. Please inqury us for quote.
Apexbio Technology LLC Cy3.5 maleimide (non-sulfonated), 25mg. Cas: N/A MFCD: NA. Labeling of cysteine residues, as well as other thiolated molecules
Cy3.5 maleimide can be used for selective labeling of free sulfhydryl groups (e.g. cysteine residues in peptides, proteins and oligonucleotides). Before labeling, cystines should be prepared with reductant such as TCEP (tris-carboxyethylphosphine). Other sizes are available. Please inqury us for quote.
Apexbio Technology LLC Cy3.5 maleimide (non-sulfonated), 5mg. Cas: N/A MFCD: NA. Labeling of cysteine residues, as well as other thiolated molecules
Cy3.5 maleimide can be used for selective labeling of free sulfhydryl groups (e.g. cysteine residues in peptides, proteins and oligonucleotides). Before labeling, cystines should be prepared with reductant such as TCEP (tris-carboxyethylphosphine). Other sizes are available. Please inqury us for quote.
Biotium Aminooxy-Biotin
Aminooxy-biotin can be used to covalently attach biotin to a molecule with an aldehyde or ketone group. The aminooxy group reacts with an aldehyde or ketone group to form a stable oxime linkage in an aqueous solution at neutral pH. The reaction is fast and can be further accelerated by adding aniline as a catalyst. Thus, aminooxy reagents are superior to hydrazide reagents, which also react with aldehydes or ketones but form unstable hydrazone linkages.
Medchemexpress LLC Sulfo-Cy5.5 Azide | 1955527-41-9 | C44H50N6O13S4 | 5 MG
Sulfo-Cy5.5 Azide is a click chemistry reagent that contains an azide group. It is a water-soluble dye with excitation at 673 nm and emission at 707 nm. It is designed to label sensitive molecules like peptides, proteins, and oligonucleotides. The azide group allows it to undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing alkyne groups, and ring strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing DBCO or BCN groups.
- Click chemistry reagent
- Contains an azide group
- Water-soluble dye (Ex=673 nm, Em=707 nm)
- Designed to label sensitive molecules such as peptides, proteins, and oligonucleotides
- Can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with alkyne-containing molecules
- Can undergo ring strain-promoted alkyne-azide cycloaddition (SPAAC) with DBCO or BCN-containing molecules
Medchemexpress LLC Sulfo-Cy3 Azide | 1801695-56-6 | C35H46N6O10S3 | 5 MG
Sulfo-Cy3 Azide is a water-soluble fluorogenic dye that contains an azide group, facilitating Click Chemistry. This dye is suitable for labeling sensitive molecules, such as proteins.
- Can participate in copper-catalyzed azide-alkyne cycloaddition (CuAAc) with alkyne-containing molecules.
- Can undergo ring strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing DBCO or BCN groups.
Dojindo Molecular Technologies Inc Biotin Labeling Kit-NH2 (1 mg), is used for preparation of biotin-labeled IgG for enzyme immunoassay (EIA). It only requires one hour to have high recovery of conjugates, applicable for 1mg IgG.
Biotin Labeling Kit-NH2 is mainly used for the preparation of biotin-labeled IgG for enzyme immunoassay (EIA), NH2-reactive biotin, a component of this kit, has succinimidyl groups (NHS) that react with amino groups on proteins or other molecules. The labeling process is very simple, just add the NH2- reactive Biotin to IgG solution(1 mg protein/sample) and incubate at 37°C for 10 minutes. An average of 5 to 8 biotin molecules conjugate to each IgG molecule. The number of biotin molecules per protein can be determined by HABA assay. Excess biotin molecules can be removed by a filtration tube. The molecular weight of the protein to be labeled with this kit should be greater than 50,000. This kit contains all of the necessary reagents for labeling, including the storage buffer for conjugates. Dojindo has various protein labeling reagents. (https://www.dojindo.com/labeling-chemistry/)
Biotium Lucifer Yellow CH, lithium salt, 67769-47-5, 25mg
Molecular Formula C13H9N5O9S2.2Li, Molecular Weight 457.254. Lucifer Yellow CH lithium salt (LY CH lithium salt) is a widely used polar molecular tracer for studying neuronal morphology. The fluorescent molecule contains a carbohydrazide that allow the molecule to be aldehyde-fixable.
Santa Cruz Biotechnology FP-Biotin (CAS 259270-28-5) 1mg Purity: ≥98% Molecular Weight: 592.75Molecular Formula:C27H50FN4O5PS
FP-Biotin is a biotinylated organophosphorus agent that may be useful in identifying proteins that react with organophosphorus toxicants (OP). It is a small molecule that is composed of a biotin molecule attached to a fluorescent dye, fluorescein. FP-biotin has a wide range of applications in scientific research, as it can be used for labeling, imaging, and detection of molecules. It is also used in a variety of laboratory experiments, such as protein purification, enzyme assays, and DNA sequencing. Common techniques it is used in are western blotting, ELISA, and affinity chromatography.
AdipoGen Rhodamine 800
Chemical. CAS 137993-41-0. Formula C26H26ClN3O5. MW 495.95. Rhodamine 800 is a near-infrared fluorescent dye, which was originally developed as a laser dye. Rhodamine 800 belongs to the rhodamine family and is one of the few rhodamines that have near infrared fluorescence. It displays bright red-orange fluorescence, making it an ideal choice for labeling proteins, nucleic acids, and other molecules in biochemical studies. Rhodamine 800 finds widespread use in research and analytical applications. It is used for detecting proteins in cells, tracking molecule movement and studying molecular interactions. In fluorescence microscopy and imaging, Rhodamine 800 enables visualization of organelles and molecules within living cells. It proves valuable in flow cytometry for measuring DNA levels and quantifying proteins and other molecules.
LICOR IRDye 800CW Azide Infrared Dye (0.5 mg)
IRDye 800CW Azide provides the functionality for preferential labeling of molecules that contain either the alkyne or dibenzocyclooctyne (DBCO) group.