|
MCE |
SFE |
SE |
NE |
|
|
Methylcellulose |
Hydroxypropyl Methylcellulose |
| Structure |
 |
+ |
-CH3 (MeO) |
|
|
|
+ |
-CH3 (MeO) |
| -CH2CHOHCH3 (HPO) |
|
E No.
21 CFR |
E 461
§182.1480 |
E464
§172.874 |
| Substitution |
MeO =27.5-31.5% |
MeO =27.0-30.0% HPO=4.0-7.5% |
MeO =28.0-30.0% HPO=7.0-12.0% |
MeO =19.0-24.0% HPO=4.0-12.0% |
| Character |
Firm thermal gel. Good shape retention and water retention. |
Semi-firm thermal gel. Better compatibility with others. |
Clear solution. Good film forming property. Softest texture. |
Good compatibility with other materials Soluble in warm condition. |