When sourcing Propylene Glycol (PG), understanding the different grades available is crucial for ensuring optimal performance and compliance in your specific applications. As a leading manufacturer and supplier of chemical products in China, we understand the importance of providing clarity on these distinctions. Propylene Glycol, chemically known as 1,2-propanediol (CAS 57-55-6), is a versatile chemical with a wide range of uses, from industrial resins to sensitive pharmaceutical formulations.

The two primary grades that buyers often encounter are USP/EP grade and industrial grade. The designation USP (United States Pharmacopeia) and EP (European Pharmacopoeia) signifies that the Propylene Glycol meets rigorous purity standards set by these authoritative bodies. This high purity is essential for applications where human contact or consumption is involved, such as in pharmaceuticals, cosmetics, food, and beverages. USP/EP grade Propylene Glycol is characterized by very low levels of impurities, ensuring safety and efficacy in these sensitive sectors. If you are formulating medications, personal care products, or food items, sourcing USP/EP grade Propylene Glycol from a reputable manufacturer is non-negotiable.

Industrial grade Propylene Glycol, while still a quality product, may have slightly higher levels of impurities that are acceptable for less critical applications. These can include its use as a component in antifreeze, de-icing fluids, and as a raw material for producing unsaturated polyester resins, polyurethanes, and plasticizers. In these industrial contexts, the presence of trace impurities typically does not affect the performance or safety of the end product. However, it is always advisable to consult the specific technical data sheets provided by your supplier to confirm the suitability of industrial grade PG for your particular manufacturing process.

As a trusted chemical supplier, we offer both USP/EP and industrial grades of Propylene Glycol. Our commitment is to provide you with the right product for your needs. Whether you require high-purity Propylene Glycol for pharmaceutical applications or a cost-effective industrial grade for manufacturing, we are your reliable source. We encourage you to contact us to discuss your specific requirements, learn about our competitive Propylene Glycol price, and arrange for samples. Partner with us to ensure the quality and reliability of your chemical supply chain.