HPMC manufacturer

Product Description
The English abbreviation of hydroxypropyl methylcellulose is HPMC, which is a
non-ionic cellulose ether with a molecular formula of C56H108O30. CAS 9004-65-
3, odorless, tasteless, white powder.
Hydroxypropyl methylcellulose (HPMC) absorbs moisture after drying but is
stable. The solution is stable at pH 3-11. As the temperature increases, the
viscosity of the solution decreases. Heating-cooling can reversibly transform
HPMC from a solution state to a gel state. According to different grades and
concentrations, the gel temperature is 50～90℃. HPMC water solution has anti-
enzyme effect and maintains good viscosity stability during long-term storage.
However, its aqueous solution is susceptible to microbial attack, so
preservatives should be added during storage. When HPMC is used as a thickening
agent in eye drops, benzalkonium chloride is usually added as a preservative.

Click to Enlarge