Pharmaceutical Grade High-Substituted Hydroxypropyl Cellulose(H-HPC)
Hydroxypropyl cellulose (HPC), a non-ionic cellulose ether, is produced by reacting alkali cellulose with propylene oxide. It’s categorized into low-substituted (L-HPC) and high-substituted (H-HPC) types based on the degree of hydroxypropyl substitution. L-HPC, with 9%-15% substitution, exhibits good flowability and compressibility, making it ideal as a disintegrant and binder in tablets. H-HPC, with around 60% substitution, offers excellent solubility and viscosity, making it a preferred thickener, emulsifier, and film-forming agent.