Crosslinking, Labeling and Protein Modification
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 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 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 Cy3.5 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.
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.
Avanti Polar Lipids DSPE-PEG 2000 MALEIMIDE, Powder, White, 10 mg
DSPE-PEG(2000) Maleimide is a highly purified, functionalized polyethylene glycol (PEG) lipid designed for advanced research applications in targeted drug delivery. This lipid enables precise conjugation of bioactive molecules to nanoparticle systems, ensuring reliable results in therapies for genetic disorders, cancer, and neurological conditions. Its exceptional purity is confirmed through HNMR analysis, making it a preferred choice for researchers focused on enhancing the specificity and efficacy of drug delivery systems.
- Highly purified PEG lipid for advanced drug delivery
- Facilitates conjugation with thiol-containing bioactive molecules
- Verified structural integrity with no detectable maleimide ring opening
- Application in targeted therapies for genetic disorders and cancer
- Stored at -20°C and shipped with dry ice for optimal stability
- Purity greater than 99% verified by TLC
Nanocs Folate PEG FITC, FITC PEG Folic acid, 2k Da, 5mg
Folic acid PEG Fluorescein, also called Folate PEG fluorescein, is one of Nanocs fluorescent folic acid PEG derivatives. Fluorescein is a bright green fluorescent dye with excitation/emission wavelength at 490 nm/520 nm. Fluorescent PEG can be easily traced with its fluorescent signal. Folic acid was covalently linked to PEG chain via its terminal carboxylic groups. Folic acid is also known as vitamin M, vitamin B9 or pteroyl-L-glutamic acid. Folic acid is an essential bioactive molecule for numerous biological functions. It participates in the synthesis, repairing and methylation of DNA as well as to act as a cofactor in many biological reactions. Folic acid is a ligand to folate receptors on cell surfaces. Fluorescein PEG folic acid is readily soluble in aqueous solution and it can be used to detect folate receoptors on cell membrane.
Nanocs DBCO PEG Folic acid, 2k Da. 5mg
DBCO PEG Folic acid, also called DBCO PEG folate, is one of Nanocs' folic acid PEG derivatives that can go Click Chemistry reaction without a need of any metal catalysts. The strain-promoted 1,3-dipolar cycloaddition of cyclooctynes and azides, also termed as the Cu-free click reaction, is a bioorthogonal reaction that enables the conjugation of two molecules in aqueous solution. DBCO PEG folate derivatives possess fast kinetics and stability in aqueous buffer. DBCO reagents can be used to label azide-modified biomolecules spontaneous without the need for toxic Cu catalysts. Folic acid, is also known as vitamin M, vitamin B9 or pteroyl-L-glutamic acid. Folic acid is an essential bioactive molecule for numerous biological functions. It participates in the synthesis, repairing and methylation of DNA as well as to act as a cofactor in many biological reactions. DBCO functional folic acid can be easily attached to azide functionalized molecules, particles or solid surfaces.
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.
Nanocs Vitamin B12 PEG Biotin, 5000 Da, 5 mg
Vitamin B12 PEG Biotin is one of Nanocs bioactive PEG derivatives that can be used for bioassay development. Vitamin B12, also known as cobalamin or cyanocobalamin, is a water soluble vitamin that is involved in the metabolism of cells in human body. Product Specifications:Form: Solid powderColor: RedSolubility: Soluble in waterFunctional ligand: biotinBinding target: Avidin, streptavidin or neutravidinApplications: Bioassay development
Cayman Chemical NAD free acId 500mg
A signaling molecule as well as a cofactor or substrate for many enzymes
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.