MPEG Methoxypolyethylene glycols CAS 9004-74-4

Product name:Methoxypolyethylene glycols

English alias: MPEG; Methyl PEG; Methoxy polyethylene glycol

CAS: 9004-74-4

Molecular formula:(C2H4O)nCH4O

Appearance:Colorless to light yellow viscous liquid or white waxy solid

Package: 25kg/drum, 50kg/drum, 200kg/drum

What is Methoxypolyethylene glycols？

It is a non-ionic polymer with a hydrophilic polyethylene glycol chain and a terminal methoxy group. It is characterized by excellent water solubility, low toxicity, and good chemical stability. Available in various molecular weights (from 200 to 5000 g/mol), it finds wide applications in pharmaceuticals, cosmetics, and industrial fields. The product appears as a colorless to light yellow viscous liquid (low molecular weight) or white waxy solid (high molecular weight).

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COA:

Application:

1. Pharmaceuticals: Methoxypolyethylene glycols used as drug solubilizer and carrier in drug delivery systems

2. Cosmetics: Emulsifier and moisturizer in skincare and haircare products

3. Chemical Synthesis: Important intermediate for producing surfactants and lubricants

4. Textile Industry:Methoxypolyethylene glycols used as leveling agent and softener in dyeing processes

5. Construction: Water reducer and plasticizer in concrete admixtures

6. Electronics: Additive in electroplating and metal processing solutions

7. Agriculture: Surfactant and carrier in pesticide formulations

Safety Profile:

Polyethylene Glycol Monomethyl Ether is generally considered non-toxic and non-irritating. It is biodegradable and safe for use in pharmaceutical and cosmetic applications. High molecular weight grades are approved for food-contact applications. Always refer to the Safety Data Sheet (SDS) for specific handling guidelines.

Storage requirements:

Store in a cool, dry, well-ventilated area

Keep containers tightly sealed to prevent moisture absorption

For solid grades, protect from high temperatures to prevent melting

Avoid contact with strong oxidizing agents

Recommended storage temperature: 15-30°C

Transport & Packaging:

Available in 25kg plastic drums (liquid), 50kg fiber drums (solid), and 200kg steel drums. Classified as non-hazardous for transport. Suitable for all conventional transportation methods. Shelf life: 24 months when stored under proper conditions.