O-(2-Azidoethyl)heptaethylene glycol

≥95% (oligomer purity)

Azido-PEG (n=7)
Empirical Formula (Hill Notation):
CAS Number:
Molecular Weight:
Beilstein/REAXYS Number:
MDL number:
PubChem Substance ID:
Pricing and availability is not currently available.

Quality Level


≥95% (oligomer purity)

mol wt

average Mn 400

reaction suitability

reaction type: click chemistry
reagent type: cross-linking reagent





storage temp.


SMILES string




InChI key



O-(2-Azidoethyl)heptaethylene glycol is used to synthesize oligo and poly(ethylene glycol) derivatives that are used as structural units of dendrimers, hydrogels, surface modifiers, self-assembling systems and molecular crosslinkers. This precursor is compatible for acetylene-azide click reactions.

Some of the reported applications include:
  • Synthesis of strain-stiffening hydrogels through self-assembly of oligomers fibres derived from Azido-PEG (n=7).
  • Synthesis of biodegradable tetra-PEG hydrogels for drug delivery system.
  • Synthesis of heterobifunctional oligo(ethylene glycol) linkers for bioconjugation and targeted drug delivery.
  • Preparation of synthetic amphiphiles for programmed pH-dependent dispersions of carbon nanotubes (CNTs).
  • Selective glycoprotein detection through allosteric click-imprinting by using a self-assembled monolayer developed from the above oligomer.
  • Preparation of bioactivated quantum dot micelles containing fluorescent nanocrystals.


250 mg in glass bottle
Bottomless glass bottle. Contents are inside inserted fused cone.


Exclamation mark

Signal Word


Hazard Statements

Precautionary Statements

Target Organs

Respiratory system

Personal Protective Equipment

dust mask type N95 (US),Eyeshields,Gloves


NONH for all modes of transport

WGK Germany


Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificate of Analysis
Certificate of Origin
Efficient synthesis of diverse heterobifunctionalized clickable oligo (ethylene glycol) linkers: potential applications in bioconjugation and targeted drug delivery.
Goswami LN, et al.
Organic & Biomolecular Chemistry, 11(7), 1116-1126 (2013)
Small bioactivated magnetic quantum dot micelles.
Roullier V, et al.
Chemistry of Materials, 20(21), 6657-6665 (2008)
Selective glycoprotein detection through covalent templating and allosteric click-imprinting.
Stephenson-Brown A, et al.
Chemical Science, 6(9), 5114-5119 (2015)
Programmed dispersions of MWNTs in aqueous media by coating with photopolymerizable synthetic amphiphiles.
Thauvin C, et al.
The Journal of Physical Chemistry C, 115(15), 7319-7322 (2011)
Strain stiffening hydrogels through self?assembly and covalent fixation of semi?flexible fibers.
Sijbesma RP, et al.
Angewandte Chemie (International Edition in English), 56, 8771-8771 (2017)
Progress in biotechnology fields such as tissue engineering and drug delivery is accompanied by an increasing demand for diverse functional biomaterials. One class of biomaterials that has been the subject of intense research interest is hydrogels, because they closely mimic the natural environment of cells, both chemically and physically and therefore can be used as support to grow cells. This article specifically discusses poly(ethylene glycol) (PEG) hydrogels, which are good for biological applications because they do not generally elicit an immune response. PEGs offer a readily available, easy to modify polymer for widespread use in hydrogel fabrication, including 2D and 3D scaffold for tissue culture. The degradable linkages also enable a variety of applications for release of therapeutic agents.
Read More
Devising biomaterial scaffolds that are capable of recapitulating critical aspects of the complex extracellular nature of living tissues in a threedimensional (3D) fashion is a challenging requirement in the field of tissue engineering and regenerative medicine.
Read More

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