Molekula
Polyethylene glycol 300
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 1999 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
Polyethylene glycol 300 (PEG 300) is a liquid polymer widely used as a solvent, humectant, and plasticizer in pharmaceuticals, cosmetics, and industrial applications. It is also employed in food processing as an emulsifier and stabilizer. This clear, viscous liquid has a CAS number of 25322-68-3, with a molecular formula of H(OCH2CH2)nOH and an average molecular weight of 285-315. It requires no special storage conditions and carries no signal word for hazard classification. Molekula supplies Polyethylene glycol 300 from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Example image for illustration only. Other packaging and pack sizes are available.
Often bought together
Pricing & pack sizes
Pack sizes & pricing
Pricing on request — packs available from research to bulk quantities.
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Tell us how much you need and when — drums, IBCs, sacks or a one-off bulk lot. We'll manufacture or source it and come back with a price.
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Specifications
| Property | Value |
|---|---|
| Appearance | Clear colourless liquid |
| Water | ≤0.5%wt |
| Colour | ≤50 Pt-Co |
| Average molecular weight | 285-315 g/mol |
| Density (25 °C) | ≥1.100 g/cm3 |
| Acid (Based on acetic acid) | ≤0.05%wt |
| pH @ 25°C 5% aqueous solution | 4.5-7.5 |
| Viscosity @ 99°C | 5.4-6.4 cSt |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Neutral |
Identification
| Property | Value |
|---|---|
| SKU | 90031876 |
| CAS Number | 25322-68-3 |
| Molecular Formula | H(OCH2CH2)nOH |
| Molecular Weight | c.a. 285-315 (Av) |
| REACH Code | Y113 |
| TSCA Listed | Yes |
| HTS Code | 3907.29.0000 |
| Tariff Code | 3907291190 |
Safety & GHS
Precautionary statements
- P280 Wear protective gloves/protective clothing/eye protection/face protection
Documents
Safety Data Sheets (SDS)
Available in English, English (US), French, German, Italian, Spanish.
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Synonyms
No alternate names recorded for this product.
Frequently asked questions
What is polyethylene glycol 300 (PEG 300) commonly used for?
PEG 300 is widely used as a solvent, humectant, and plasticizer in pharmaceuticals, cosmetics, and food applications, as well as in industrial processes like lubricants and textile treatments.
What is the chemical formula and molecular weight of PEG 300?
The chemical formula is **H(OCH₂CH₂)ₙOH**, with an average molecular weight of **285–315 g/mol** depending on the batch.
How should PEG 300 be stored?
Store PEG 300 in a tightly sealed container at **ambient temperature**, away from moisture and direct sunlight.
What grades of PEG 300 does Molekula supply?
Molekula supplies **pharmaceutical-grade (EP/USP) and industrial-grade PEG 300**, depending on your application requirements.
Can Molekula supply PEG 300 in bulk quantities?
Yes, we offer PEG 300 in **bulk packaging (drums, IBCs, or custom quantities)** for large-scale industrial or commercial needs.
What documentation comes with a PEG 300 order?
Each order includes a **Certificate of Analysis (CoA), Safety Data Sheet (SDS), and batch-specific documentation** for traceability.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.