Propylene Glycol USP 99.8%

Propylene Glycol USP 99.8% (CAS 57-55-6, molecular formula C3H8O2) is a workhorse solvent across coatings, cleaning and process manufacture, valued for its predictable evaporation behaviour and consistent purity from batch to batch. China Chemicals supplies it at 99.8% min in pack sizes from 1 L through to 200 L Drum, so laboratory trial quantities and full production volumes can be sourced from the same specification.

It is also traded as MPG, 1,2-Propanediol, Propane-1,2-diol. Every consignment ships with a batch-specific Certificate of Analysis and the current Safety Data Sheet, and material is stored and picked under stock rotation so you receive product well inside its shelf life.

Typical applications

Food, flavour and fragrance carrier at USP grade
Low-toxicity heat transfer and food-plant coolant
Humectant and solvent in personal care formulation
Unsaturated polyester resin production
De-icing and aircraft anti-icing fluids

Technical specification

Chemical name	Propylene Glycol USP 99.8%
Synonyms	MPG, 1,2-Propanediol, Propane-1,2-diol
CAS number	57-55-6
Molecular formula	C3H8O2
Appearance	Clear colourless viscous liquid
Purity	99.8% min
Water	0.2% max
Acidity as acetic acid	0.005% max
Colour (Pt-Co)	10 max
Density at 20°C	1.035 – 1.037 g/cm³
Standard	USP / EP compliant

Values above are typical and are confirmed on the Certificate of Analysis issued against each batch. Tighter specifications can be quoted where a process requires them.

Packaging and supply

Available in 1 L, 5 L, 25 L, 200 L Drum. Bulk, road tanker and export drum quantities are quoted on request, including FOB and CIF terms for international shipment. Pricing shown is per pack in USD, exclusive of freight and any applicable duties.

Handling and safety

Transport classification: Not regulated · Not classified as hazardous. Store in the original closed container in a cool, well-ventilated area away from incompatible materials, and handle using appropriate personal protective equipment. Read the Safety Data Sheet in full before use — it is issued with every order and is available on request before purchase.

Supply to industry only. Products are sold for legitimate industrial, laboratory and manufacturing use. We may request end-use details and business registration before releasing an order.