Certificate of Analysis

 

Product Name: Hydroxypropyl methyl cellulose (HPMC)
Catalog Number: M1345
CAS Number: 9004-65-3

Physical and Chemical Properties
Solubility: Soluble in cold water
Storage: Powder          -20°C   3 years ;  4°C   2 years
In solvent       -80°C   6 months ;  -20°C   1 month
Chemical Structure: Hydroxypropyl methyl cellulose (HPMC) Structure
Analytical Data
QC Standard: 20000mPa.s
H-NMR: Consistent with structure
Product Information
Description: Hydroxypropyl methyl cellulose (HPMC) is a water-soluble hydrophilic, non-ionic cellulose ether used to form swellable-soluble matrices.
   
Stability and Solubility Advice: Information concerning product stability, particularly in solution, has rarely been reported and in most cases we can only offer a general guide.
We recommend that stock solutions, once prepared, are stored aliquoted in tightly sealed vials and used within 1 month. Avoid repeated freeze and thaw cycles. Storage conditions for some special products should refer to their storage details.