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Tetraethyleneglycol monomethyl ether

Catalog Number
ACM23783428-2
Product Name
Tetraethyleneglycol monomethyl ether
Structure
CAS
23783-42-8
Category
Poly(ethylene glycol) and Poly(ethylene oxide)
Description
Polyethylene glycol (PEG) compounds contain a polyether unit, commonly expressed as R1-(O-CH2-CH2)n-O-R2. They are generally biocompatible, non-toxic and stable in both organic and aqueous solutions, and so are extensively used in biological applications, as well as nanotechnology and materials research. Proteins with PEG chain modifications and compounds encapsulated in PEG liposomes exhibit a longer half-life in vivo than their non-PEGylated counterparts, a phenomenon known as PEG shielding. Functionalised PEG lipids and phospholipids can be used for protein-PEG conjugation.
IUPAC Name
2-[2-[2-(2-methoxyethoxy)ethoxy]ethoxy]ethanol
Molecular Weight
208.25, average Mn 200
Molecular Formula
C9H20O5;HO(CH2CH₂O)4CH3;C9H20O5
Canonical SMILES
COCCOCCOCCOCCO
InChI
1S/C9H20O5/c1-11-4-5-13-8-9-14-7-6-12-3-2-10/h10H,2-9H2,1H3
InChI Key
ZNYRFEPBTVGZDN-UHFFFAOYSA-N
Boiling Point
280-350 °C
Melting Point
-39 °C
Flash Point
161 °C c.c.
Density
1.045 g/mL at 25 °C
Solubility
Solubility in water: miscible
Application
Activated PEG derivatives can be used to modify peptides, proteins, or in other bioconjugation applications. PEGylated materials have found broad use in drug delivery systems, virology, and immunology, as the incorporation of PEG improves pharmacological properties such as increased water solubility, enhanced resistance to degradation (protein hydrolysis), increased circulation half-life, and reduced antigenicity. In addition to PEGylation, activated PEG derivatives can also be used to form networks for tissue engineering or drug delivery applications, depending on the architecture and reactivity.
Complexity
99.2
Covalently-Bonded Unit Count
1
EC Number
245-883-5
Exact Mass
208.131074g/mol
Features And Benefits
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Formal Charge
0
Heavy Atom Count
14
ICSC Number
1749
Log P
-0.6
MDL Number
MFCD00041756
Monoisotopic Mass
208.131074g/mol
NSC Number
345692
Refractive Index
n20/D 1.444
Rotatable Bond Count
11
Vapor Density
Relative vapor density (air = 1): 7.2 (calculated)
Vapor Pressure
Vapor pressure, Pa at 20 °C:
Viscosity
11.5-12.5 mm2/s at 20 °C
XLogP3
-1
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