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Specifications of methylcellulose (MC) and hypromellose (HPMC).
| Methocel® grade | Methoxy (Meo) (% w/w) a | Hydroxypropyl (Hpo) (% w/w) a | Hpo/Meo ratio | Total substitution (% w/w) | Viscosity (cps) a |
|---|---|---|---|---|---|
| A4M | 30 | 0 | 0 | 30 | 4878 |
| F4M | 28.1 | 6.7 | 0.238 | 34.8 | 4031 |
| E4M | 29.0 | 8.3 | 0.286 | 37.3 | 3919 |
| K4M | 22.3 | 8.5 | 0.381 | 30.8 | 4351 |
| K15M | 22.3 | 9.0 | 0.403 | 31.3 | 17129 |
| K100M | 22.5 | 8.9 | 0.395 | 31.4 | 79279 |
a Data obtained from the manufacturer.
