Mono Propylene Glycol (MPG or PG) is a clear, colorless, and viscous liquid that is made up of a chemical compound called propylene oxide. This versatile chemical substance has a wide range of applications and is used extensively in the food, cosmetics, and pharmacy sectors. MPG Propylene Glycol has a good dissolving ability for food coloring and is not volatile and cheap after additi... https://www.cnchemsino.com/products/mpg/