Alkyne hydrazide

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.

Alkyne maleimide

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

Alkyne NHS ester (hexynoic acid NHS ester)

Alkyne NHS ester for the labeling of biomolecules with alkyne group for Copper catalyzed Click chemistry.

Alkyne-PEG2-amine

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

Alkyne-PEG2-iodide

Bifunctional reactive cross linker containing terminal alkyne group for Click chemistry or Sonogashira coupling, and reactive alkyl iodide group.

Alkyne-PEG3-amine

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

Alkyne-PEG3-COOH

Bifunctional linker with terminal alkyne function, and carboxylic acid moiety, CAS# 1415800-32-6.

Alkyne-PEG3-OH

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

Azide-PEG3-aldehyde

A linker with an azide group, and an aliphatic aldehyde moiety.

Azide-PEG3-Amine

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

Azide-PEG3-Azide

Triethylene glycol diazide (CAS# 59559-06-7) is a bifunctional crosslinker bearing two azide groups. Suitable for Click chemistry.

Azide-PEG3-OH

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

Azide-PEG4-Amine

PEG4 amine azide (CAS# 134179-38-7) 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.

Azide-PEG4-Azide

PEG4 diazide (CAS# 101187-39-7) 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.

Azidobutyric acid NHS ester

Activated ester for azido labeling of peptides and proteins.

Cyanine7 dicarboxylic acid

Cyanine7 dicarboxylic acid is a bifunctional dye molecule possessing two carboxylic acid groups.

DBCO NHS ester

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.

Hydroxy-PEG2-Thiol

Short bifunctional linker with thiol group and OH group. Thiol can coat gold surfaces forming hydrophilic monolayer.

Iodo-PEG3-azide

Iodo PEG3 azide is a bifunctional linker with a highly reactive alkylative halogen functional group, and an azido group for Click chemistry / Staudinger ligation.

Iodo-PEG3-Iodide

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

PEG3 dicarboxylic acid

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

Pentynoic acid STP ester

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

Sulfo-Cyanine5 bis-NHS ester

Water soluble amine reactive Cyanine5 dye with two NHS ester groups.

sulfo-Cyanine7 dicarboxylic acid

Sulfo-Cyanine7 dicarboxylic acid is a bifunctional dye with two carboxyl groups.

Sulfo-Cyanine7.5 dicarboxylic acid

Sulfo-Cyanine7.5 dicarboxylic acid is a bifunctional cyanine dye with two carboxylic acid (COOH) groups. The molecule can be used to construct cross conjugates containing a near infrared emitting fluorophore.