propylene glycol is an organic compound (diol), usually slightly sweet, odorless, colorless and transparent oily liquid, hygroscopic and easily mixed with water, acetone, and chloroform. propylene glycol has a wide range of applications and is often used as a hygroscopic agent, antifreeze, lubricant and solvent in the food, pharmaceutical and cosmetic industries. propylene glycol, which is widely used in various industries, is divided into two types: 1,2-propanediol and 1,3-propanediol. 1,2-propylene glycol has good viscosity and hygroscopicity and is widely used in the food, pharmaceutical and cosmetic industries.
according to the supply of propylene glycol, the uses of pharmaceutical grade 1,2-propanediol in medicine are as follows:
propylene glycol is used as raw material to produce pharmaceutical intermediates ;
propylene glycol is commonly used in the pharmaceutical industry as a solvent, softener and excipient in the manufacture of various ointments and ointments;
in the pharmaceutical industry it is used as a blending agent and antiseptic solvents for agents, ointments, vitamins, penicillin, etc.
a mixture of propylene glycol and water in a certain proportion can delay the hydrolysis of certain drugs and increase their stability;
when its concentration is appropriately selected, it can be used as an injection solvent, with quick-acting or prolonged effect;
a certain concentration of propylene glycol can be used as a penetration enhancer for drug absorption through the skin or mucous membrane.
