Pharmaceutical-grade ethyl cellulose meeting USP/NF and EP monograph requirements.
Consistent batch-to-batch performance with strict control of substitution level and molecular weight distribution.
Excellent film-forming capability for controlled-release and enteric-coating applications.
High purity with low residual solvents and heavy metals, compliant with ICH Q3D guidelines.
Free-flowing white to off-white powder with excellent dispersibility in organic solvents.
Sustained-release matrix tablets and granules.
Enteric and functional film coatings for oral solid dosage forms.
Microencapsulation and pellet coating in multiparticulate systems.
Viscosity modifier in topical and ophthalmic formulations.
Binder and release modifier in hot-melt extrusion (HME) processes.
| Chemical Type | Ethyl cellulose polymer |
| Product Form | Free-flowing powder |
| Appearance | White to off-white granular or powdered solid |
| Substitution Level (Ethoxy Content) | 48.0–49.5% w/w |
| Viscosity (2% w/v in toluene/ethanol 4:1) | 46–54 mPa·s |
| Heavy Metals (as Pb) | ≤ 10 ppm |
| Residual Solvents (Ethanol/Toluene) | Complies with ICH Q3C Class 2 limits |
| Microbial Limits | Meets USP <71> requirements for non-sterile pharmaceutical excipients |
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E-mail: wangxingqiang@ericwchem.com
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