Bifunctional crosslinker with an amine-reactive succinimidyl ester and a thiol-reactive maleimide group.

Bifunctional hydrophilic linker with NHS ester and terminal alkyne functional group based on diethyleneglycol (PEG2).

Bifunctional hydrophilic linker with NHS ester and terminal alkyne functional group based on triethyleneglycol (PEG3).

Bifunctional hydrophilic linker with NHS ester and terminal alkyne functional group based on tetraethyleneglycol (PEG4).

A hydrophilic bifunctional linker with azide and NHS ester function groups flanking PEG6 (hexaethylene glycol).

Activated NHS ester for azido-labeling of peptides and proteins.

PEG4-containing activated ester for simple and efficient biotin labeling of antibodies, proteins, and other primary amine-containing biomolecules.

Azodibenzocyclooctyne (DBCO, ADIBO) reagent for strain-promoted copper-free click chemistry (SPAAC). The reagent contains an NHS ester function for the attachment of the cyclooctyne to various molecules.

Activated ester for modification of proteins/antibodies/peptides followed by introduction into copper-free click chemistry reaction.

A heterobifunctional linker with DBCO and NHS ester function groups flanking PEG6 (hexaethylene glycol).

Homobifunctional crosslinker with two NHS ester groups at each end of a short 5-atom (7.7 angstrom) spacer.

BCN-PNP carbonate is a tool to introduce BCN moety via carbamate linkage with primary amino groups of substrate.

Hexynoic acid NHS ester for the labeling of biomolecules with alkyne group for copper-catalyzed click chemistry.

Alkyne activated ester for the modification of amine groups. STP ester group is an excellent alternative to NHS ester functionality.

An activated ester for the introduction of alkyne into peptides/proteins and click reaction.

A heterobifunctional linker with trans-cyclooctene and NHS ester groups flanking PEG4 (tetraethylene glycol) for labeling of antibodies, proteins, and other primary amine-containing biomolecules.

Bifunctional reagent containing alkyne group and hydrazide function. It reacts with aldehydes and ketones. Alkyne group can then be coupled with various azides via CuAAC reaction.

Maleimide reagent for the attachment of alkyne functional group to proteins, peptides, and other molecules bearing SH (thiol) groups, including cysteine residues.

Bifunctional hydrophilic linker with NHS ester and terminal alkyne functional group based on diethyleneglycol (PEG2).

Diethyleneglycol (PEG2) based bifunctional linker containing amine and alkyne functional groups.

Bifunctional diethyleneglycol linker with terminal alkyne and carboxylic acid moieties.

Bifunctional reactive crosslinker containing terminal alkyne group for click chemistry or Sonogashira coupling, and reactive alkyl iodide group.

Bifunctional hydrophilic linker with NHS ester and terminal alkyne functional group based on triethyleneglycol (PEG3).

Alkyne-PEG3-OH is a triethyleneglycol based bifunctional linker with a hydroxyl group and an alkyne fragment.

Alkyne-PEG3-amine is a medium-length heterobifunctional linker for conjugation.

Bifunctional triethyleneglycol linker with terminal alkyne and carboxylic acid moieties.

PEG3 with alkyne and iodide functional groups, a reactive and hydrophilic linker for alkylation and click chemistry.

Bifunctional spacer with alkyne and maleimide groups for conjugation of biomolecules.

Bifunctional hydrophilic linker with NHS ester and terminal alkyne functional group based on tetraethyleneglycol (PEG4).

A bifunctional linker molecule containing both terminal alkyne moiety for click chemistry, and amine group. Contains a long hydrophilic PEG4 arm.

Bifunctional tetraethyleneglycol linker with terminal alkyne and carboxylic acid moieties.

Bifunctional reactive PEG4-based crosslinker containing terminal alkyne group for click chemistry or Sonogashira coupling and reactive alkyl iodide group.

Water soluble, heterobifunctional hydrophilic linker with a length of 14 Å, containing maleimide for thiol labeling, and alkyne for click chemistry. An ideal reagent to attach an alkyne moiety to a protein.

Biotin alkyne is a reagent for click chemistry labeling with biotin, an affinity probe to streptavidin.

Biotin alkyne is a reagent for click chemistry labeling with biotin, an affinity probe to streptavidin.

Hexynoic acid NHS ester for the labeling of biomolecules with alkyne group for copper-catalyzed click chemistry.

Alkyne activated ester for the modification of amine groups. STP ester group is an excellent alternative to NHS ester functionality.

An activated ester for the introduction of alkyne into peptides/proteins and click reaction.

A heterobifunctional linker with trans-cyclooctene and NHS ester groups flanking PEG4 (tetraethylene glycol) for labeling of antibodies, proteins, and other primary amine-containing biomolecules.

A bifunctional short linker with amino and azido groups. A solid, chemically stable hydrochloride form of azidopropylamine. This product is ideal as an azidopropylamine bulk for applications when a large amount of reagent is needed.

Diethyleneglycol (PEG2) based bifunctional linker containing amine and alkyne functional groups.

Alkyne-PEG3-amine is a medium-length heterobifunctional linker for conjugation.

A bifunctional linker molecule containing both terminal alkyne moiety for click chemistry, and amine group. Contains a long hydrophilic PEG4 arm.

Bifunctional PEG3 derivative with amine group and hydroxyl.

Hydrophilic PEG3-linker with a terminal amino group and a carboxyl group.

A hydrophilic tetraethylene glycol derivative with terminal amino and hydroxyl groups.

A diethylene glycol (PEG2) linker with azide and amino groups.

A bifunctional linker with azide and amine groups flanking PEG3 (triethylene glycol)

PEG4 amine azide is a bifunctional linker with amine and azide functional groups. It is based on a tetraethyleneglycol core. The length of the PEG4 linker is 1.4 nm.

Diethylene glycol (PEG2) based bifunctional molecule containing biotin and amine functional group.

Triethylene glycol (PEG3) based bifunctional molecule containing biotin and amine functional group.

Tetraethylene glycol (PEG4) based bifunctional molecule containing biotin and amine functional group.

Bifunctional linker containing dibenzocyclooctyne (DBCO, ADIBO) for strain-promoted copper-free click reaction (SPAAC) and free amine for the coupling with various electrophilic compounds like activated esters and epoxides.

Tetraglycine is an oligopeptide composed of four glycine monomers. It is used as a bifunctional linker with amino and carboxyl groups.

Azide-PEG4-maleimide (two-component composition) - bifunctional reagent with PEG spacer, enabling conjugation with biomolecule thiol residues and click chemistry reactions.

Azidopropanol is a short bifunctional linker compound with azide and hydroxy functional groups.

Water-soluble, bifunctional short crosslinker with amino and azide groups.

A bifunctional short linker with amino and azido groups. A solid, chemically stable hydrochloride form of azidopropylamine. This product is ideal as an azidopropylamine bulk for applications when a large amount of reagent is needed.

A diethylene glycol (PEG2) linker with azide and amino groups.

Bifunctional diethylene glycol with terminal carboxyl and azido groups.

A bifunctional molecule containing hydrophilic PEG2 with azide and iodide groups.

Azide-PEG3-OH is a bifunctional molecule with an azide group, primary alcohol, and a hydrophilic PEG3 linker in between.

A bifunctional linker with azide and amine groups flanking PEG3 (triethylene glycol)

Triethylene glycol diazide is a bifunctional crosslinker bearing two azide groups. Suitable for click chemistry.

Bifunctional triethylene glycol with terminal carboxyl and azido groups.

Azide-PEG3-chloride contains a reactive halogen atom and an azide group for click chemistry reaction. It can also serve as a protected amine group equivalent.

Azide-PEG3-iodide is a bifunctional linker with a highly reactive alkylative halogen functional group and an azido group for click chemistry or Staudinger ligation.

A hydrophilic bifunctional linker with azide and tetrazine function groups flanking PEG3 (triethylene glycol) spacer.

Azide-PEG4-OH is a bifunctional molecule with an azide group, primary alcohol, and a hydrophilic PEG4 linker in between.

PEG4 amine azide is a bifunctional linker with amine and azide functional groups. It is based on a tetraethyleneglycol core. The length of the PEG4 linker is 1.4 nm.

PEG4 diazide is a homobifunctional linker with two azide groups. It can be used for the synthesis of dimeric molecules with a hydrophilic core by click chemistry.

A hydrophilic bifunctional linker with azide and NHS ester function groups flanking PEG6 (hexaethylene glycol).

Activated NHS ester for azido-labeling of peptides and proteins.

Biotin azide is a reagent for click chemistry labeling with biotin, a well-known affinity probe to streptavidin.

AF 488 conjugate of streptavidin, a high-affinity biotin-binding protein, for immunofluorescence, western blots, microplate assays, and other applications use.

AF 594 conjugate of streptavidin, a high-affinity biotin-binding protein, for immunofluorescence, western blots, microplate assays, and other applications use.

AMCA conjugate of streptavidin, a high-affinity biotin-binding protein, for immunofluorescence, western blots, microplate assays, and other applications use.

Lysine derivative of biotin for conjugation with avidin or streptavidin, neuroanatomical tracer.

Biotin derivative with C6-spacer to reduce steric effect when binding amino acids, peptides, or proteins by reacting with primary amines.

Hydrazide biotin reagent with aminocaproic spacer useful for biotinylation of macromolecule reactive carbonyls.

Thiol-reactive bifunctional linker for attaching biotin to proteins, peptides, and other thiolated molecules.

Biotin alkyne is a reactive affinity label which can be attached to biomolecules via click reaction.

Biotin alkyne is a reagent for click chemistry labeling with biotin, an affinity probe to streptavidin.

Biotin azide is a reagent for click chemistry labeling with biotin, a well-known affinity probe to streptavidin.

Triethylene glycol (PEG3) based bifunctional molecule containing biotin and amine functional group.

Biotin azide is a reagent for click chemistry labeling with biotin, a well-known affinity probe to streptavidin.

PEG4-containing activated ester for simple and efficient biotin labeling of antibodies, proteins, and other primary amine-containing biomolecules.

Biotin alkyne is a reagent for click chemistry labeling with biotin, an affinity probe to streptavidin.

Tetraethylene glycol (PEG4) based bifunctional molecule containing biotin and amine functional group.

Biotin azide is a reagent for click chemistry labeling with biotin, a well-known affinity probe to streptavidin.

Bifunctional tetraethyleneglycol linker with biotin and carboxylic acid moieties.

A highly reactive biotinylation reagent that readily and efficiently interacts with various nucleophiles.

Biotin tetrazine is a reagent for copper-free click chemistry labeling with biotin, a well-known affinity probe to streptavidin.

Biotin and cystamine conjugate is a cleavable biotinylation reagent.

sulfo-Cyanine3 conjugate of streptavidin, a high-affinity biotin-binding protein, for immunofluorescence, western blots, microplate assays, and other applications use.

Conjugate of hydrophilic sulfo-Cyanine3 dye with biotin, affinity label for avidin/streptavidin.

sulfo-Cyanine5 conjugate of streptavidin, a high-affinity biotin-binding protein, for immunofluorescence, western blots, microplate assays, and other applications use.

Biotin conjugate of the far-red fluorescent sulfo-Cyanine5 dye.

Bifunctional reagent containing alkyne group and hydrazide function. It reacts with aldehydes and ketones. Alkyne group can then be coupled with various azides via CuAAC reaction.

Hydrazide biotin reagent with aminocaproic spacer useful for biotinylation of macromolecule reactive carbonyls.

A hydrophilic bifunctional linker with azide and tetrazine function groups flanking PEG3 (triethylene glycol) spacer.

Biotin tetrazine is a reagent for copper-free click chemistry labeling with biotin, a well-known affinity probe to streptavidin.

PEG3 tetrazine is a mono-reactive triethyleneglycol with a tetrazine group for IEDDA conjugation with strained olefins.

Bifunctional diethyleneglycol linker with terminal alkyne and carboxylic acid moieties.

Bifunctional triethyleneglycol linker with terminal alkyne and carboxylic acid moieties.

Bifunctional tetraethyleneglycol linker with terminal alkyne and carboxylic acid moieties.

Hydrophilic PEG3-linker with a terminal amino group and a carboxyl group.

Bifunctional diethylene glycol with terminal carboxyl and azido groups.

Bifunctional triethylene glycol with terminal carboxyl and azido groups.

A bifunctional compound containing carboxylic acid functional group, and iodide, an active halogen group.

PEG3-dicarboxylic acid is a bifunctional linker carrying two carboxy groups. It contains a polyethyleneglycol-3 linker between the carboxyls.

Tetraglycine is an oligopeptide composed of four glycine monomers. It is used as a bifunctional linker with amino and carboxyl groups.

Thalidomide-containing building block with carboxylic acid functionality for convenient PROTAC molecule assembly by attachment amino-functionalized linkers and ligands to thalidomide via 4-O-position.

Bifunctional reactive crosslinker containing terminal alkyne group for click chemistry or Sonogashira coupling, and reactive alkyl iodide group.

PEG3 with alkyne and iodide functional groups, a reactive and hydrophilic linker for alkylation and click chemistry.

Bifunctional reactive PEG4-based crosslinker containing terminal alkyne group for click chemistry or Sonogashira coupling and reactive alkyl iodide group.

A bifunctional molecule containing hydrophilic PEG2 with azide and iodide groups.

Azide-PEG3-chloride contains a reactive halogen atom and an azide group for click chemistry reaction. It can also serve as a protected amine group equivalent.

Azide-PEG3-iodide is a bifunctional linker with a highly reactive alkylative halogen functional group and an azido group for click chemistry or Staudinger ligation.

A bifunctional compound containing carboxylic acid functional group, and iodide, an active halogen group.

Homobifunctional PEG3 based linker with halogen reactive groups is useful for the crosslinking of nucleophiles.

Ascorbic acid is a reducing agent converting copper(II) into a monovalent form that catalyzes the click reaction.

BTTAA is the newest generation of water-soluble ligands for the copper(I)-catalyzed azide-alkyne cycloaddition (CuAAC) that dramatically accelerates reaction rates and suppresses cell cytotoxicity.

A catalyst for copper-catalyzed click reactions in aqueous media. A stable сopper(II) complex with BTTAA which must be converted to copper(I) using reducing agents. The complex can be used to prepare a reaction buffer of any composition.

A catalyst for click reaction. A stable copper(II) complex which must be converted to monovalent copper(I) in situ using reducing agents. The complex can be used to prepare a reaction buffer of any composition.

Ready-to-use catalytic buffer containing сopper(II) and water-soluble THPTA ligand. It is suitable for click chemistry modification of proteins.

Ready-to-use catalytic buffer containing сopper(II) and TBTA ligand. It is suitable for click chemistry modification of nucleic acids and small molecules.

TBTA is one of the most widely used water-insoluble ligands for copper-catalyzed azide-alkyne cycloadditions (CuAAC).

THPTA is a water-soluble ligand for Cu(I)-catalyzed click chemistry. The ligand stabilizes copper in its Cu(I) oxidation state. Due to high aqueous solubility, reactions with this ligand do not require an organic co-solvent.

Ready-to-use high purity, amine-free solvent for NHS ester labeling.

Pure dimethyl sulfoxide (DMSO) solvent with quality optimized for bioconjugation reactions.

Water soluble carbodiimide for the coupling of carboxylic acids with amines.

Triethylene glycol diazide is a bifunctional crosslinker bearing two azide groups. Suitable for click chemistry.

PEG4 diazide is a homobifunctional linker with two azide groups. It can be used for the synthesis of dimeric molecules with a hydrophilic core by click chemistry.

Homobifunctional crosslinker with two NHS ester groups at each end of a short 5-atom (7.7 angstrom) spacer.

Homobifunctional PEG3 based linker with halogen reactive groups is useful for the crosslinking of nucleophiles.

PEG3-dicarboxylic acid is a bifunctional linker carrying two carboxy groups. It contains a polyethyleneglycol-3 linker between the carboxyls.

Azide-PEG4-maleimide (two-component composition) - bifunctional reagent with PEG spacer, enabling conjugation with biomolecule thiol residues and click chemistry reactions.

Bifunctional crosslinker with an amine-reactive succinimidyl ester and a thiol-reactive maleimide group.

Maleimide reagent for the attachment of alkyne functional group to proteins, peptides, and other molecules bearing SH (thiol) groups, including cysteine residues.

Bifunctional spacer with alkyne and maleimide groups for conjugation of biomolecules.

Water soluble, heterobifunctional hydrophilic linker with a length of 14 Å, containing maleimide for thiol labeling, and alkyne for click chemistry. An ideal reagent to attach an alkyne moiety to a protein.

Thiol-reactive bifunctional linker for attaching biotin to proteins, peptides, and other thiolated molecules.

Azodibenzocyclooctyne (DBCO, ADIBO) reagent for strain-promoted copper-free click chemistry (SPAAC). The reagent contains an NHS ester function for the attachment of the cyclooctyne to various molecules.

Activated ester for modification of proteins/antibodies/peptides followed by introduction into copper-free click chemistry reaction.

Bifunctional linker containing dibenzocyclooctyne (DBCO, ADIBO) for strain-promoted copper-free click reaction (SPAAC) and free amine for the coupling with various electrophilic compounds like activated esters and epoxides.

A heterobifunctional linker with DBCO and NHS ester function groups flanking PEG6 (hexaethylene glycol).

BCN-PNP carbonate is a tool to introduce BCN moety via carbamate linkage with primary amino groups of substrate.

Short bifunctional linker with thiol and hydroxyl groups. Thiol can coat gold surfaces forming a hydrophilic monolayer.

PEG3 bifunctional linker with thiol and hydroxyl groups. Thiol can coat gold surfaces forming a hydrophilic monolayer.