Alkyne-PEG4-NHS ester

Cat. # Quantity Price Lead time
2409-100mg 100 mg $250 in stock
2409-1g 1 g $790 in stock
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Alkyne-PEG4-NHS ester is a bifunctional molecule containing NHS ester and alkyne functional groups. NHS ester group is used for the labeling of amine groups, like lysine and terminal NH2, in proteins and peptides. The terminal alkyne group is useful for copper-catalyzed click chemistry (CuAAC) or Sonogashira coupling.

PEG4 is a hydrophilic linker providing a good separation between the parts of the conjugate.

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General properties

Appearance: light yellow oil
Molecular weight: 401.41
CAS number: 1393330-40-9
Molecular formula: C18H27NO9
IUPAC name: 4,7,10,13,16-Pentaoxanonadec-18-ynoic acid, 2,5-dioxo-1-pyrrolidinyl ester
Solubility: good in water and polar organic solvents
Quality control: NMR 1H and HPLC-MS (95+%)
Storage conditions: 12 months after receival at -20°C in the dark. Transportation: at room temperature for up to 3 weeks. Desiccate.
MSDS: Download
Product specifications
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