Methoxypolyethylene glycols
Synonym(s):Methoxy poly(ethylene glycol);Methoxypolyethylene glycol;mPEG;Poly(ethylene glycol) methyl ether;Polyethylene glycol monomethyl ether
- CAS NO.:9004-74-4
- Empirical Formula: C5H12O3
- Molecular Weight: 120.14698
- MDL number: MFCD00084416
- EINECS: 618-394-3
- SAFETY DATA SHEET (SDS)
- Update Date: 2024-12-18 14:08:57
What is Methoxypolyethylene glycols?
Description
m-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 properties
varies from viscous liquid to white flakes, depending
The Uses of Methoxypolyethylene glycols
enteric coating controlled release and enteric release coatings
The Uses of Methoxypolyethylene glycols
Methoxypolyethylene 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.
The Uses of Methoxypolyethylene glycols
Methoxypolyethylene 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.
What are the applications of Application
Methoxypolyethylene glycol 350 is a polyethylene glycol
Definition
ChEBI: A poly(ethylene glycol) terminated with a methyl group at one end.
brand name
Carbowax Sentry Methoxypolyethylene Glycol (Union Carbide).
General Description
It 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.
Properties of Methoxypolyethylene glycols
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 | n |
Flash point: | 268 °C |
storage temp. | -20°C |
solubility | H2O: 50 mg/mL at 25 °C, clear, colorless |
form | semisolid |
color | White to pale yellow |
Specific Gravity | 1.094 |
PH | 5.5-7.0 (25℃, 50mg/mL in H2O) |
Water Solubility | Slightly miscible with water. |
λmax | λ: 260 nm Amax: 0.06 λ: 280 nm Amax: 0.03 |
Stability: | Stable. Incompatible with strong oxidizing agents, strong acids, strong bases. |
EPA Substance Registry System | Poly(oxy-1,2-ethanediyl), .alpha.-methyl-.omega.-hydroxy- (9004-74-4) |
Safety information for Methoxypolyethylene glycols
Computed Descriptors for Methoxypolyethylene glycols
InChIKey | XNWFRZJHXBZDAG-UHFFFAOYSA-N |
Methoxypolyethylene glycols manufacturer
Viswaat Chemicals Limited
Bazayan & Co.
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