Methoxypolyethylene glycols

Basic Information

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CAS Number

9004-74-4

Molecular Formula

C5H12O3

Molecular Weight

560.68 g/mol

EINECS

618-394-3

Chemical Classification

Basic Chemical Raw Materials Organic Chemicals Ethers

Polymers and Plastics Thermoplastics Polyolefins

Basic Physical Properties

Melting Point

58.0 to 64.0 deg-C

Boiling Point

>200°C/760mmHg

Density

1.094 g/mL at 25 °C

Water Solubility

Slightly miscible with water.

Solubility

H2O: 50 mg/mL at 25 °C, clear, colorless

Refractive Index

n20/D 1.459

Vapor Pressure

0.05 mmHg ( 20 °C)

Vapor Density

>1 (vs air)

SMILES

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COCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCO

InChI

InChI=1S/C25H52O13/c1-27-4-5-29-8-9-31-12-13-33-16-17-35-20-21-37-24-25-38-23-22-36-19-18-34-15-14-32-11-10-30-7-6-28-3-2-26/h26H,2-25H2,1H3

InChIKey

PLQZJIIDLZRWBG-UHFFFAOYSA-N

LogP

-0.1922999999999903

Topological Polar Surface Area

130.99000000000004 Å²

Hydrogen Bond Donor/Acceptor

1 / 13

Complexity

14.4

Safety Information

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Storage Conditions

-20°C

Stability

Stable. Incompatible with strong oxidizing agents, strong acids, strong bases.

Sensitiveness

prone to moisture absorption

RTECS

PE8271000

Synonyms & References

English

Methoxypolyethylene glycols
2-ethanediyl),.alpha.-methyl-.omega.-hydroxy-Poly(oxy-1
alpha-methyl-omega-hydroxy-poly(oxy-2-ethanediyl)
Ethyleneoxideadductofdiethyleneglycolmonomethylether
methoxypolyethyleneglycol350
methoxypolyethyleneglycol550
monomethoxypolyethyleneglycol
Poly(oxy-1,2-ethanediyl),.alpha.-methyl-.omega.-hydroxy-
Poly(oxyethylenePoly(oxyethylene),.alpha.-methyl-.omega.-hydroxy
Methoxypolyethylene glycol
Polyethylene glycol monomethylether
Polyethylene Glycol Monomethyl Ether 550
Polyethylene Glycol Monomethyl Ether 2000
Polyethylene Glycol Monomethyl Ether 400
Polyethylene Glycol Monomethyl Ether 1000
Polyethylene Glycol Monomethyl Ether 4000
2-Methoxyethanol
Methoxypolyethyleneglycol,averageM.W.350
mPEG
Poly(Ethylene Glycol Methyl Ether)
Poly(ethyleneglycolmethylether),averageM.W.350500GR
Poly(ethyleneglycolmethylether),averageM.W.750500GR
Poly(ethyleneglycolmethylether),averageM.W.7505GR
Poly(oxy-1,2-ethanediyl), α-methyl-ω-hydroxy- Polymer
POLYETHYLENE GLYCOL MONOMETHYL ETHER, 600
Poly(ethylene glycol Methyl ether), average M.W. 750
mono-Methyl polyethylene glycol 350
Poly(ethylene glycol) monomethyl ether
MPEG 350
MPEG
m-PEG-OH (MW 2000)

MDL Number

MFCD06797088

EC Number

618-394-3

Customs Code

29091990

FAQ

What is Methoxypolyethylene glycols (CAS: 9004-74-4)?

Methoxypolyethylene glycols (CAS: 9004-74-4) are a class of polyether compounds derived from ethylene glycol and methoxy groups. They exhibit high solubility in water, biocompatibility, and are commonly used as excipients in pharmaceutical formulations. These compounds are characterized by their hydrophilic nature and ability to modify surface properties, making them versatile in various applications.

What are the main uses of Methoxypolyethylene glycols (CAS: 9004-74-4)?

Methoxypolyethylene glycols (CAS: 9004-74-4) are widely used in pharmaceuticals as drug delivery agents, coatings for tablets, and stabilizers. In industry, they serve as lubricants, surfactants, and dispersing agents. They also find applications in food processing as emulsifiers and in research for developing nanocarriers and biomaterials. Their versatility stems from their chemical structure and functional properties.

Is Methoxypolyethylene glycols (CAS: 9004-74-4) safe?

Methoxypolyethylene glycols (CAS: 9004-74-4) are generally considered safe when used as directed. They are non-toxic, non-irritating, and approved for use in pharmaceuticals and food by regulatory bodies like the FDA. However, proper handling precautions, such as wearing gloves and avoiding inhalation, are recommended to ensure safety during industrial or research applications.

How should Methoxypolyethylene glycols (CAS: 9004-74-4) be stored?

Methoxypolyethylene glycols (CAS: 9004-74-4) should be stored in a cool, dry place away from direct light. Keep them in airtight, moisture-proof containers to maintain stability and prevent degradation. Ensure storage conditions are below 25°C and humidity levels are controlled to preserve their chemical integrity and functionality.