Methoxypolyethylene glycols

Methoxypolyethylene glycols Basic information
Product Name:Methoxypolyethylene glycols
Synonyms:2-ethanediyl),.alpha.-methyl-.omega.-hydroxy-Poly(oxy-1;ETHYLENE GLYCOL 750 MONOMETHYL ETHER POLYMER;ETHYLENE GLYCOL 5000 MONOMETHYL ETHER POLYMER;ETHYLENE GLYCOL 550 MONOMETHYL ETHER POLYMER;ETHYLENE GLYCOL 350 MONOMETHYL ETHER POLYMER;ETHYLENE GLYCOL 1900 MONOMETHYL ETHER POLYMER;METHOXY POLYETHYLENE GLYCOL 750;Methoxypolyethylene glycols
CAS:9004-74-4
MF:C5H12O3
MW:120.14698
EINECS:618-394-3
Product Categories:PEG;Cosmetic;Cosmetic Ingredients & Chemicals;Non-Ionic Detergents;Polydispersed PEG;construction;Detergents;Detergents N to Z;Hydroxy;Materials Science;Monofunctional PEGs;Poly(ethylene glycol) and Poly(ethylene oxide);Polymer Science;Optimization Reagents;Polymers;X-Ray Crystallography;Protein Structural Analysis;Proteomics
Mol File:9004-74-4.mol
Methoxypolyethylene glycols Structure
Methoxypolyethylene glycols Chemical Properties
Melting point 60-64 °C
Boiling point >200°C/760mmHg
density 1.094 g/mL at 25 °C
vapor density >1 (vs air)
vapor pressure 0.05 mm Hg ( 20 °C)
refractive index n20/D 1.459
Fp 268 °C
storage temp. -20°C
solubility H2O: 50 mg/mL at 25 °C, clear, colorless
form semisolid
Specific Gravity1.094
color White to pale yellow
PH5.5-7.0 (25℃, 50mg/mL in H2O)
Water Solubility Slightly miscible with water.
λmaxλ: 260 nm Amax: 0.06
λ: 280 nm Amax: 0.03
Stability:Stable. Incompatible with strong oxidizing agents, strong acids, strong bases.
InChIKeyXNWFRZJHXBZDAG-UHFFFAOYSA-N
LogP-0.800 (est)
EPA Substance Registry SystemPoly(oxy-1,2-ethanediyl), .alpha.-methyl-.omega.-hydroxy- (9004-74-4)
Safety Information
Safety Statements 24/25-22
WGK Germany 3
RTECS PE8271000
3
TSCA Yes
HS Code 29091990
MSDS Information
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Methoxypolyethylene glycols English
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Methoxypolyethylene glycols Usage And Synthesis
Descriptionm-PEG36-alcohol is a PEG linker containing a hydroxyl group. The hydroxyl group enables further derivatization or replacement with other reactive functional groups. The hydrophilic PEG spacer increases solubility in aqueous media.
Chemical Propertiesvaries from viscous liquid to white flakes, depending
Usesenteric coating controlled release and enteric release coatings
UsesMethoxypolyethylene glycol 350 has been used in a study to assess the synthesis of a new class of thermosensitive micellar cyclotriphosphazenes. It has also been used in a study to investigate synthesis of a new amphiphilic poly(organophosphazene) by stepwise nucleophilic substitution.
UsesMethoxypolyethylene Glycol of with an average molecular mass of 350. Methoxypolyethylene Glycol (MPEG) is used in various applications such as micelles for drug delivery as well as in modifications of therapeutic proteins to improve their pharmacokinetics.
DefinitionChEBI: A poly(ethylene glycol) terminated with a methyl group at one end.
Brand nameCarbowax Sentry Methoxypolyethylene Glycol (Union Carbide).
General DescriptionIt is a Polyethylene glycol (PEG) macromer with a reactive chain end consisting of methyl ether. Etherification of the PEG chain ends can be undertaken in basic conditions by reacting it with alkyl halides. mPEG can undergo cross linking to form hydrogels; polymerization can be initiated by redox reaction or free radical initiator.
Methoxypolyethylene glycols Preparation Products And Raw materials
Preparation ProductsBenzonatate
Polyethylene glycol dimethyl ether Diethylene glycol monomethyl ether TRIETHYLENE GLYCOL MONOMETHYL ETHER ETHYLENE Ethylenediamine C8E3 ETHYLENE OXIDE ETHYLENE DIACRYLATE Ethylene carbonate 2-Methoxyethanol Polyethylene Glycol Monomethyl Ether TRIETHYLENE GLYCOL DIMETHYL ETHER 1,2-Dibromoethane PROPYLENE GLYCOL Ethylene glycol diacetate Ethylene glycol Glycols DME

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