Ethyl Cellulose: Film-Forming Coating Polymer
Ethyl cellulose is a water-insoluble cellulose ether widely used in pharmaceutical formulation as a coating agent, binder, and matrix former. It is produced by ethylation of cellulose and is valued for its film-forming properties, chemical stability, and compatibility with a broad range of plasticizers and active ingredients.
Product Profile
| CAS Number | 9004-57-3 |
|---|---|
| Appearance | White to light tan free-flowing powder or granules |
| Function | Coating agent / Binder / Sustained-release matrix |
| Typical Use Level | 1–20% depending on application (coating vs. matrix) |
| Compendial Grade | EP / USP-NF / JP |
Formulation Applications
In tablet coating, ethyl cellulose provides moisture protection and can be used to modify drug release by forming water-insoluble film barriers. As a matrix former, it is used in sustained-release oral dosage forms where the drug diffuses through the insoluble ethyl cellulose network. In multiparticulate systems, it is applied as a coating on pellets or granules in fluid-bed processes, often combined with a plasticizer such as dibutyl sebacate. Ethyl cellulose is also used in microencapsulation and in topical formulations as a film-forming agent.
Why Source from TCS
TCS supplies ethyl cellulose in pharmaceutical and technical grades to formulators across Europe. Available in standard packaging with flexible quantities for R&D through production scale. Contact us with your application and volume requirements.
FAQ
What information should be included in an inquiry for Ethyl Cellulose 9004-57-3?
A useful inquiry normally includes the product name, target application, estimated quantity, destination market, and any specific documentation or packaging requests.
How is Ethyl Cellulose 9004-57-3 usually evaluated for sourcing?
This product is positioned for excipient sourcing where formulation fit, dosage form, handling, and repeat purchasing requirements need to be reviewed together with commercial supply conditions.
What documentation and commercial points are commonly reviewed before buying Ethyl Cellulose 9004-57-3?
For excipient sourcing, teams usually discuss the intended dosage form, formulation role, packaging format, order volume, and the routine documentation needed for qualification and purchasing.
Request a Quote
If your team already has a target application, estimated quantity, destination market, or documentation requirements, send those details so the commercial response can be prepared more efficiently.