Alkyne-PEG4-maleimide

Cat. # Quantity Price Lead time
2002-100mg 100 mg $150 in stock
2002-1g 1 g $590 in stock
Found better price? Let us know and we will propose the way forward!

When proteins or other sensitive biomolecules need to be conjugated, polyethyleneglycol (PEG) linkers are a great choice. They provide hydrophilicity and maintain separation between conjugated molecules. This linker based on PEG4, has length of 14Å (1.4 nm). Heterobifunctional linkers carrying different reactive groups can be used to prepare cross-conjugates between different molecules.

Maleimide functional group is especially useful, because they can label proteins site specifically. Most proteins have only limited number of cysteine residues that selectively react with maleimides. Alkyne group can be then conjugated with azides in a selective copper-catalyzed process, CuAAC (copper-catalyzed alkyne-azide cycloaddition).

Customers also purchased with this product

Cyanine5 carboxylic acid

Cyanine5 carboxylic acid, unactivated dye.

Cyanine3 alkyne

Cyanine3 alkyne is a fluorescent dye alkyne for сlick сhemistry.

H2DCFDA (2′,7′-dichlorodihydrofluorescein diacetate)

A reagent for detecting reactive oxygen species in living cells.

General properties

Appearance: yellow oil
Mass spec M+ increment: 311.3
Molecular weight: 311.33
CAS number: 1262681-30-0
Molecular formula: C15H21NO6
Solubility: good in water, DMF, DMSO
Quality control: NMR 1H, HPLC-MS (95%)
Storage conditions: Storage: 12 months after receival at -20°C in the dark. Transportation: at room temperature for up to 3 weeks. Avoid prolonged exposure to light. Desiccate.
MSDS: Download
Product specifications
Your item has been added. View your cart or proceed to checkout
The count of items is incorrect.