Hydroxypropyl Methylcellulose (HPMC) or hypromellose is a derivatives of Methyl cellulose ethers . It is a white or off-white fibrous or granular cellulose ether powder. It is currently the cellulose ethers with the best performance in the world, integrating thickening, suspending, dispersing, emulsifying and stabilizing. Hydroxypropyl methyl cellulose (HPMC) is non-toxic, easy to use, and easily soluble in water. It is a polyanion in aqueous solution and has unique physical properties.