Molekula
1,2-Propanediol (Propylene glycol)
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 2000 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
1,2-Propanediol, also called propylene glycol, is a synthetic organic compound widely used as a solvent, humectant, and antifreeze agent in food, pharmaceuticals, and cosmetics. It also serves as a carrier for essential oils and a stabilizer in industrial applications. This chemical has a CAS number of 57-55-6, with the molecular formula CH3CH(OH)CH2OH and a molecular weight of 76.09. It is stored at ambient conditions and carries no signal word for hazards. Molekula supplies 1,2-Propanediol 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.
Pricing & pack sizes
These pack sizes aren't a limit. Molekula manufactures, sources and repacks to order — if you need 500 kg and only see 1 kg listed, . We quote from grams to multi-tonne.
Need a different size? Add the nearest pack and change the size in your basket — we price it at the same rate per unit.
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1 L — £29.50 per pack ex VAT · £35.40 inc. VAT
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100 mL — £20.00 per pack ex VAT · £24.00 inc. VAT
Need a different quantity or pack?
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.
Prices exclude VAT/sales tax and shipping.
Specifications
| Property | Value |
|---|---|
| Appearance | Clear colourless viscous liquid |
| Refractive Index | 1.4310-1.4350 nD20 |
| Grade | USP/EP |
| Water | ≤0.2% |
| Identification | Conforms to reference |
| Colour | ≤10 |
| Chloride (Cl-) | ≤0.007% |
| Assay | ≥99.5% |
| Acidity | ≤0.05% |
| Residue on Ignition | ≤70ppm |
| Distillation Range | 184°-189°C |
| Heavy Metals (Pb) | ≤10ppm |
| Sulphates (SO4)(2-) | ≤0.006% |
| Density (20°C) | 1.0350-1.0370 g/cm3 |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Flash Point | 104 °C |
| Acidity | Neutral |
Identification
| Property | Value |
|---|---|
| SKU | 84440420 |
| CAS Number | 57-55-6 |
| Molecular Formula | CH3CH(OH)CH2CH2OH |
| Molecular Weight | 76.09 |
| SMILES | CC(CO)O |
| REACH Code | Y113 |
| TSCA Listed | Yes |
| HTS Code | 29053200 |
| Tariff Code | 2905320090 |
Safety & GHS
Precautionary statements
- P280 Wear protective gloves/protective clothing/eye protection/face protection
Documents
Safety Data Sheets (SDS)
Available in English, 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 1,2-Propanediol (Propylene glycol) commonly used for?
1,2-Propanediol is widely used as a humectant in pharmaceuticals, cosmetics, and food products, as well as a solvent and antifreeze agent in industrial applications.
What is the chemical formula and molecular weight of 1,2-Propanediol?
The chemical formula is **CH₃CH(OH)CH₂OH** (or **C₃H₈O₂**), and the molecular weight is **76.09 g/mol**.
How should 1,2-Propanediol be stored?
Store in a tightly sealed container at **ambient temperature**, away from ignition sources and incompatible substances.
What grades of 1,2-Propanediol does Molekula supply?
Molekula supplies **pharmaceutical (USP/EP/JP), cosmetic, and food-grade (FDA-compliant) 1,2-Propanediol**—confirm your specific requirements.
Can Molekula supply 1,2-Propanediol in bulk quantities?
Yes, we offer **bulk packaging options** (drums, IBCs, or custom solutions) for large-scale industrial or commercial needs.
What documentation comes with an order of 1,2-Propanediol?
Each order includes a **Certificate of Analysis (CoA), Material Safety Data Sheet (MSDS), 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.