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9004-74-4
bosschem
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
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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Test Item | Unit | Specification |
Molecular Weight | g/mol | 950 - 1050 |
Hydroxyl Value | mg KOH/g | 50 - 60 |
pH Value (5% solution) | — | 5.0 - 7.0 |
Moisture | % | ≤ 0.5 |
Color (APHA) | — | ≤ 30 |
Melting Point (for solid) | °C | 38 - 42 |
Residue on Ignition | % | ≤ 0.1 |
Molecular Weight | g/mol | 950 - 1050 |
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
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.
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
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.
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
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).
.
Test Item | Unit | Specification |
Molecular Weight | g/mol | 950 - 1050 |
Hydroxyl Value | mg KOH/g | 50 - 60 |
pH Value (5% solution) | — | 5.0 - 7.0 |
Moisture | % | ≤ 0.5 |
Color (APHA) | — | ≤ 30 |
Melting Point (for solid) | °C | 38 - 42 |
Residue on Ignition | % | ≤ 0.1 |
Molecular Weight | g/mol | 950 - 1050 |
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
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.
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
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.
