EASTMAN CELLULOSE ACETATE

Cellulose Acetate USP/NF, EP

Brand ofEastman
Cellulose acetate is a cellulosic polymer in which a portion or all of the hydroxyl groups are acetylated. It is prepared from highly purified cellulose by treatment with acid catalysis and acetic anhydride and occurs as a white, odourless, tasteless, free flowing powder.

Cellulose acetate is used as a semi-permeable coating on tablets, especially on osmotic pump-type tablets and implants allowing for controlled-release of the actives. Cellulose acetate films, in conjunction with other materials, also offer sustained release without the necessity of drilling a hole in the coating as is typical with osmotic pump systems. Cellulose acetate and other cellulose esters have also been used to form drug loaded micro-particles with controlled-release characteristics.
Grades

CA-398-10

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Grades
CA-398-10
Acetyls (%)
39.8
Hydroxyls (%)
3.5
Viscosity (P)
38.0
Applications
Semi-permeable coating for osmotic drug delivery systems. Also used for taste masking and as a directly compressible matrix former in extended-release tablets
PDS
SDS
Grades

CA-320S

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Grades
CA-320S
Acetyls (%)
32.0
Hydroxyls (%)
8.7
Viscosity (P)
2.1
Applications
Semi-permeable coating for osmotic drug delivery systems. Also used for taste masking and as a directly compressible matrix former in extended-release tablets
PDS
SDS
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