Polyethylene Glycol, commonly known as PEG (Polyether Polyols), is a versatile polymer of ethylene oxide. Within Pharmaceutical, Beauty & Personal Care, & Industrial Chemicals hierarchies, PEG series is defined by its molecular weight, which dictates its physical form—ranging from clear, viscous liquids (PEG 200–600) t...
Polyethylene Glycol Specifications
CAS Number
25322-68-3
Molecular Formula
(C2H4O)nH2O / H(OCH2CH2)nOH (where n ≈ 4.5 for PEG 200)
IUPAC NameORBotanical Name
Poly(ethylene glycol)
Canonical SMILES
C(CO)OCCO
InChI Key
GJQYRZMEYCNXKS-UHFFFAOYSA-N
EINECS Number
500-038-2
MDL Number
MFCD00150479
UNSPSC Code
12161803
eClass
38100402
HSN No
34042000
CAS Number
25322-68-3
Molecular Formula
(C2H4O)nH2O / H(OCH2CH2)nOH (where n ≈ 4.5 for PEG 200)
IUPAC NameORBotanical Name
Poly(ethylene glycol)
Canonical SMILES
C(CO)OCCO
InChI Key
GJQYRZMEYCNXKS-UHFFFAOYSA-N
EINECS Number
500-038-2
MDL Number
MFCD00150479
UNSPSC Code
12161803
eClass
38100402
HSN No
34042000
Appearance
Clear, colorless to pale yellow viscous liquid
Flash Point
>230°C (closed cup)
Solubility
Miscible with water and alcohols
pH (5% solution)
5.0–7.5
Specific Gravity
~1.12 g/cm³
Molecular Weight
~190–210 g/mol (average)
PEG 200 Viscosity at 20°C (Predicted)
60–70 mPa·s
PEG 400 Viscosity at 20°C (Predicted)
105–130 mPa·s
PEG 600 Viscosity at 20°C (Predicted)
150–190 mPa·s
PEG 1000 Viscosity at 20°C (Predicted)
24-29 (mm2 /s at 100°C)
PEG 1500 Viscosity at 20°C (Predicted)
35-42 (mm2 /s at 100°C)
PEG 4000 Viscosity at 20°C (Predicted)
110-170 (mm2 /s at 100°C)
PEG 6000 Viscosity at 20°C (Predicted)
250-390 (mm2 /s at 100°C)
GHS Classification
Not classified as hazardous under GHS
Precautionary Statements
P280: Wear gloves/eye protection during bulk handling
P261: Avoid breathing vapors in confined spaces
P264: Wash thoroughly after handling
P305+P351+P338: In case of eye contact, rinse with water
Toxicological Note
Low oral and dermal toxicity; non-irritating under standard use
Pharmaceuticals: Versatile Drug Delivery
Liquids (200-600): Solvent carriers in liquid-fill capsules and oral solutions
Solids (1000-6000): Water-soluble bases for ointments and suppositories. PEG 4000/6000 are essential as binders and lubricants in tablet compression.
Beauty & Personal Care: Moisture & Texture
Humectants, drawing moisture into the skin. In shampoos and lotions, they serve as viscosity modifiers and solubilisers for fragrances and essential oils. High-weight PEGs provide a creamy "spreadability" to lipsticks and solid balms
Industrial: Lubricants & Antistatic Agents
In the textile industry-Lubricants for fibers during spinning
In the rubber and plastics industries-Functions as effective mold release agents
Synthetic polymers-plasticisers in adhesives and as antistatic agents
Additional Features
Solvent Power: Compatible with polar and semi-polar compounds
Hydrophilic Carrier: Enhances bioavailability in drug systems
Non-Volatile: Thermally stable in extended processing environments
Blendable: Mixes well with other PEG grades or polyols
Low Toxicity & Biocompatibility: Safe for skin-contact applications
Paints & Coatings: Flow modifier, viscosity reducer
Highly stable but hygroscopic. Liquid grades may undergo slow oxidative degradation if exposed to heat and air.
Storage Section
Store in a cool, dry place. Liquid grades should be kept in stainless steel or HDPE containers, preferably under a Nitrogen Blanket for long-term storage.
Shipping
Non-hazardous for transport. Liquids available in 230kg drums or IBCs; Solids (4000/6000) available in 25kg bags or flakes.
Polyethylene Glycol FAQs
Minimum Order Quantity
25 kg (pilot) · 1 MT (commercial)
Lead Time
3 – 5 weeks ex-works
Incoterms
FOB · CIF
Packaging
20 L pails, 200 L HDPE drums, 1000 L IBC
Regional Availability
India · EU · Middle East · Southeast Asia
Documentation
SDS · COA · TDS available on request
Compliance & Quality
REACH registered*
GHS/SDS available
ISO 9001:2015 site*
RoHS compliant*
Global sourcing network
Consistent quality & reliability
End-to-end technical support
Recommended Products
CAS No 25322-69-4
Category
Specialty Polymers & Additives
Sub-Category
Polyether Polyols
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