CAS 57-55-6
Propylene Glycol
Propylene Glycol is a versatile humectant, solvent and carrier for cosmetics, pharmaceuticals and food, and an antifreeze and resin raw material in industrial grade.
Propylene glycol (1,2-propanediol) is a clear, odourless, slightly sweet liquid that mixes with water and many organic solvents. In personal care it acts as a humectant and carrier; in pharmaceuticals it is a solvent for oral, topical and some injectable products; in food it carries flavours and colours.
Industrial grade goes into unsaturated polyester resins, de-icing fluids and food-safe antifreeze and heat-transfer fluids, where it replaces more toxic ethylene glycol. USP grade is tested for purity and for diethylene and ethylene glycol contamination.
- CAS number
- 57-55-6
- Grades / forms
- USP / industrial
- Industries
- Personal Care & Home Care
Enquire
Get a price for Propylene Glycol
Send quantity, grade and destination port. Pricing, lead time and documentation come back within one business day.
Request a quotation- Certificate of Analysis with every batch
- MSDS in destination format
- Toll manufacturing to your specification
- Private label packing available
Typical applications
- Humectant and carrier in creams, deodorants and hair care
- Solvent in oral and topical pharmaceuticals
- Flavour and colour carrier in food (E1520)
- Unsaturated polyester resins
- Food-safe antifreeze and heat-transfer fluids
- Aircraft de-icing fluids
Packing options
- 215 kg steel or HDPE drums
- 1,000 kg IBCs
- ISO tanks
Storage & handling
Store in closed containers — propylene glycol is hygroscopic. Not regulated as dangerous goods.
Documentation
Certificate of Analysis, MSDS, Certificate of Origin, dangerous goods declaration where applicable, and third-party pre-shipment inspection on request.
Typical specification
- Assay
- ≥ 99.5%
- Water
- ≤ 0.2%
- Diethylene glycol / ethylene glycol
- ≤ 0.10% each (USP)
- Colour
- ≤ 10 Pt-Co
Typical values for reference. The exact specification is agreed before the order and confirmed on the Certificate of Analysis for each batch.
Propylene Glycol — frequently asked
USP propylene glycol meets the United States Pharmacopeia for cosmetics, pharmaceuticals and food, including tests for diethylene and ethylene glycol. Industrial grade is used for resins, antifreeze and de-icing, where pharmacopoeial testing is not required.
Glycerine is a stronger humectant with a richer, slightly tacky feel. Propylene glycol is lighter, less sticky, a better solvent for many actives and fragrances, and helps penetration. Many formulas use both.
Yes. Industrial propylene glycol is used in heat-transfer and antifreeze fluids, especially in food and beverage plants where its low toxicity is an advantage over ethylene glycol.
Yes. Chemtrade manufactures and exports Propylene Glycol (CAS 57-55-6) from Surat, Gujarat, India to more than 55 countries, for customers in Personal Care & Home Care. Send your grade, quantity and destination port for a quotation within one business day.
Every shipment of Propylene Glycol from Chemtrade includes a batch-specific Certificate of Analysis (COA) and Material Safety Data Sheet (MSDS). Certificate of Origin, third-party pre-shipment inspection and destination-specific regulatory documentation are arranged on request.
Get in touch
Send us your spec,
we'll run the batch.
Send your formulation or product name, target volume and destination port. You get pricing, lead time and documentation back within one business day — under NDA if you prefer.
Mon – Sat, 9:00 – 18:30 IST · Surat, India & Buenos Aires, Argentina