Propylene Glycol – USP/EP & Industrial Grade | China Supplier
Propylene Glycol (PG) is a versatile organic compound widely used in pharmaceutical, food, cosmetics, personal care, industrial, and chemical applications. It is a clear, colorless, nearly odorless liquid with good water solubility and excellent compatibility with many organic compounds.
Propylene Glycol is available in different grades according to its intended application. Common commercial specifications include USP/EP Grade for pharmaceutical, food, cosmetic, and other applications requiring higher quality standards, as well as Industrial Grade for a wide range of industrial and chemical formulations.
We supply Propylene Glycol from China for international customers, importers, distributors, and industrial users. Product specifications, COA, SDS, and TDS can be provided according to customer requirements.
Propylene Glycol Product Information
| Product Name | Propylene Glycol |
| Chemical Name | 1,2-Propanediol |
| CAS Number | 57-55-6 |
| Molecular Formula | C₃H₈O₂ |
| Molecular Weight | 76.09 |
| Appearance | Clear, colorless liquid |
| Main Grades | USP/EP Grade / Industrial Grade |
Propylene Glycol is a hygroscopic liquid with good solvent properties. It can dissolve or blend with water and many organic substances, making it useful as a solvent, carrier, humectant, and functional ingredient in different formulations.
Propylene Glycol USP/EP Grade
Propylene Glycol USP/EP Grade is commonly selected for applications where the material needs to meet applicable pharmaceutical or compendial quality requirements.
USP and EP refer to the United States Pharmacopeia and European Pharmacopoeia, respectively. A product described as USP/EP Grade is intended to meet the applicable requirements of these standards, subject to the manufacturer’s certification and the specific product specification.
USP/EP Propylene Glycol can be used in pharmaceutical formulations, personal care products, cosmetics, food-related applications, and other products where a higher specification is required.
Customers should always confirm the required pharmacopoeial standard and documentation before purchasing for regulated applications.
Industrial Grade Propylene Glycol
Industrial Grade Propylene Glycol is widely used in chemical and industrial formulations where pharmaceutical or food-grade specifications are not required.
It can be used as a solvent, carrier, heat-transfer fluid component, and formulation ingredient in applications such as coatings, resins, plastics, detergents, cleaning products, and other industrial chemicals.
Industrial Grade Propylene Glycol provides good solvency and compatibility with many formulation components. Its low volatility compared with many conventional organic solvents can also make it useful in selected industrial formulations.
Propylene Glycol for Cosmetics and Personal Care
Propylene Glycol is widely used in cosmetics and personal care products because of its solvent and humectant properties.
As a humectant, Propylene Glycol can help attract and retain moisture in certain formulations. It can also function as a solvent or carrier for other ingredients.
Applications may include skincare products, lotions, creams, shampoos, conditioners, deodorants, and other personal care formulations.
The appropriate grade should be selected according to the final product requirements and applicable regulations.
Propylene Glycol for Pharmaceutical Applications
Propylene Glycol is used in certain pharmaceutical formulations as a solvent, carrier, or excipient.
Its ability to dissolve a variety of substances makes it useful for formulations where an effective solvent or carrier is required. It may be used in liquid preparations and other pharmaceutical products depending on the formulation.
For pharmaceutical applications, customers should select a Propylene Glycol grade that meets the required pharmacopoeial specifications and confirm the relevant documentation before use.
Propylene Glycol for Food Applications
Propylene Glycol can also be used in selected food-related applications as a solvent, carrier, or processing ingredient when permitted by applicable regulations.
Its good miscibility with water and ability to dissolve certain ingredients make it useful in specific food formulations.
For food applications, customers should use an appropriate food-grade specification and verify compliance with the regulations applicable in the destination market.
Propylene Glycol for Industrial Applications
Propylene Glycol is an important raw material and functional ingredient in various industrial sectors.
It can be used in resins, coatings, plastics, detergents, cleaning products, heat-transfer fluids, and chemical formulations. It may also be used as an intermediate or solvent in certain manufacturing processes.
Because of its combination of water solubility, solvent properties, and relatively low volatility, Propylene Glycol is suitable for a broad range of industrial applications.
Key Properties of Propylene Glycol
Propylene Glycol offers several properties that make it useful across different industries:
- Clear, colorless liquid
- CAS No. 57-55-6
- Good water solubility
- Good solvent properties
- Low volatility
- Hygroscopic properties
- Useful as a humectant
- Useful as a carrier and solvent
- Available in USP/EP and Industrial Grade specifications
- Suitable for pharmaceutical and personal care applications when the appropriate grade is selected
- Suitable for industrial chemical formulations
- Available for bulk international supply
Propylene Glycol Supplier from China
We supply Propylene Glycol USP/EP Grade and Industrial Grade to international customers sourcing chemicals from China.
Customers can request relevant technical documents including COA, SDS, and TDS. Product grade, specification, packaging, quantity, and other purchasing requirements can be confirmed before quotation.
Our Propylene Glycol is suitable for importers, distributors, pharmaceutical and cosmetic manufacturers, chemical formulators, and industrial users.
If you are sourcing Propylene Glycol from China, contact us with your required grade, quantity, application, and destination for product information and quotation.
Frequently Asked Questions About Propylene Glycol
What is Propylene Glycol?
Propylene Glycol is an organic compound also known as 1,2-Propanediol. It is a clear, colorless liquid with good water solubility and is widely used as a solvent, carrier, humectant, and functional ingredient.
What is the CAS number of Propylene Glycol?
The CAS number of Propylene Glycol is 57-55-6.
What is Propylene Glycol used for?
Propylene Glycol is used in pharmaceuticals, cosmetics, personal care products, food-related applications, detergents, coatings, resins, plastics, heat-transfer fluids, and other industrial formulations.
What is the difference between USP/EP and Industrial Grade Propylene Glycol?
USP/EP Grade is produced and specified to meet applicable requirements of the United States Pharmacopeia and/or European Pharmacopoeia. Industrial Grade is intended primarily for industrial and chemical applications where those pharmacopoeial requirements are not required.
Is Propylene Glycol the same as Polyethylene Glycol?
No. Propylene Glycol (PG) and Polyethylene Glycol (PEG) are different chemical substances. Propylene Glycol is a small diol molecule with the formula C₃H₈O₂, while Polyethylene Glycol is a polymer with repeating ethylene oxide units and is available in different molecular weights.
Is Propylene Glycol water soluble?
Yes. Propylene Glycol is highly miscible with water, which is one of the properties that makes it useful as a solvent and carrier in many formulations.
Is Propylene Glycol used in cosmetics?
Yes. Propylene Glycol is commonly used in cosmetic and personal care formulations as a solvent, humectant, and carrier for other ingredients.
How can I buy Propylene Glycol from China?
Contact us with your required grade, quantity, application, and destination. We can provide Propylene Glycol specifications, COA, SDS, TDS, quotation, and export supply information.
Request a Propylene Glycol Quotation
Looking for a reliable Propylene Glycol supplier from China? Contact us for USP/EP Grade or Industrial Grade Propylene Glycol, including product specifications, COA, SDS, TDS, pricing, and bulk supply information.
Please provide your required grade, quantity, application, and destination so we can provide the appropriate product information and quotation.