EC N50

EC N50

KimaCell® EC N50 ethyl cellulose has the functions of bonding, filling, film-forming, etc. It is used in resin synthetic plastics, coatings, rubber substitutes, inks, insulating materials, adhesives, textile finishing agents, etc., and can also be used in agriculture and animal husbandry. It is used as an animal feed additive, as an adhesive in electronic products and military propellants.

Where to buy Cas 9004-57-3
EC N50

Specification of EC N50

Chemical name

Ethyl Cellulose


Ethylcellulose, EC, Cellulose ether, Cellulose ethyl ether, ethyl ether of cellulose

CAS number




Product Grade

EC N50


Organic Soluble Cellulose ether

Physical form

White to off-white cellulose powder

Physical form

White powder or granule with odorless and tasteless.


47.5% - 49.5%


3.0% max



Residue on ignition

0.40% max

Heavy metal

20ppm max

HS code


Application of EC N50

KimaCell® EC N50 ethyl cellulose, as a pharmaceutical excipient, mainly has the following applications:

  • As a hydrophobic material

    Often alone or mixed with hydrophilic excipients, it is used as the drug matrix of tablets, capsules, pills and other preparations to prepare sustained-release matrix preparations. It hardly changes during the whole release process of the drug, but is excreted with feces.

  • As a coating material

    As a film coating material, it has the functions of rate limiting, tablet core protection, moisture-proof, light-proof, taste-correcting and fluidity-enhancing.

  • As a carrier

    It can be used as a drug carrier to prepare microspheres or solid dispersions by emulsification-solvent evaporation method, phase coagulation method, solvent method or spray drying method. Contrary to the quick-acting and bioavailability-enhancing effects of solid dispersions, EC has the effect of slowing down drug dissolution.

  • As an adhesive

    The good adhesion performance of EC makes the pharmaceutical preparations using it as a binder have better mechanical properties, and it is not easy to produce fragments and missing corners. And its hydrophobicity also makes high-viscosity EC have obvious performance of retarding drug release when it is used as a binder.

  • As capsule material

    Capsule materials suitable for microcapsules to control the release of water-soluble drugs. The preparation method can adopt phase separation-coagulation method, drying method in oil and so on.

  • Others

    EC is also used in other dosage forms. It has been reported that transdermal formulations of terbutaline or promethazine hydrochloride were prepared using EC as the backbone, and these polymers were found to have suitable rational properties for drug diffusion and skin sensitivity both ex vivo and in vivo and without skin Stimulate. In addition, EC is also used as a blocker and stabilizer.

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EC N50