Ethyl Cellulose, CAS No.: 9004-57-3, Pharmaceutical Additives, EC, Ethyl Cellulose, Pharmaceutical Intermediates

• Powder: Yes
• Customized: Customized
• Certification: GMP, ISO 9001, USP, BP
• State: White Powder
• Purity: >99%
• Usage: Pharmaceutical Intermediates
• Model NO.: Ethyl Cellulose
• Application: Pharmaceutical Chemical
• Transport Package: 20kg Fiber Drum
• Origin: China

Product Description

TECHNICAL DATA SHEET

Chemica name: Ethyl Cellulose
CAS NO.: 9004-57-3
Molecular formula: C23H24N6O4
Structural formula:


Product Specification:

Items	Specifications
Grade	N
Ethoxyl content: w%	47.5-49.5
Moisture: wt%	≤3.0
Ash content: wt%	≤0.4
Heavy metals : ppm	≤40
Viscosity : MPa.s	4, 7, 10, 20, 50, 100, 200, 300

Notice: Average molar substitution degree of ethyl cellulose DS=2.3~2.6

Physical Properties:
The product is a white or light grey powder with odorless and tasteless.
Soft temperature: 135-155C,
Bulk density: 0.3-0.4G/cm³ .
Real specific gravity: 1.07-1.18,
Melting point 165-185C.
It doesn't dissolve in water, but dissolves in many organic solvents.

Important characteristics:
Ethyl Cellulose (DS: 2.3~2.6) is a nonionic cellulose ether.
1. Uneasy to burn.
2. Good thermo stability and excellent thermo plasticity.
3. Not discolor by sunlight,
4. Good flexibility.
5. High dielectric.
6. Excellent base-resisting and acid-resisting capability
7. Fine anti-ageing capability
8. Good salt-tolerance and cold-resistant
9. Stable for chemicals, and not deteriorate for a long time
10. EC can company with a lot of resin and all plastizer.

Applications:
1). Due to its insoluble water, ethyl cellulose is mainly used as a tablet binder and a thin film coating material, etc.. It can also be used as a skeleton material blocker to prepare various types of skeleton sustained release tablets;
2). Used as a mixed material to prepare coated slow-release preparations and slow-release pellets;
3). Used as an organic carrier to prepare electronic slurry;
4). It is used as a capsule auxiliary material to prepare sustained release microcapsules, so that the efficacy can be continuously released and avoid the premature action of some water-soluble drugs;
5). It can also be used as a dispersant, stabilizer, and water-retaining agent in various drug dosage forms to prevent the drug from becoming damp and deteriorating, and to improve the safe storage of tablets.

Dissolving:
The usually used solvents of EC (DS: 2.3-2.6) are aromatics and alcohols. The aromatics are benzene, and xylene, suitable percent: 60-80%. The alcohols are methanol and ethanol etc. Suitable percent: 20-40%.
EC is slowly added to the vessel with organic solvent while stirring, until it is completely wet and dissolved.

Package:
It is packed fiber drum (lined with polyethylene bag). Net weight: 20kg per drum.