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Merck
CN

28244

乙基纤维素

tested according to Ph. Eur., viscosity 10 mPa.s 

别名:

乙基纤维素

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化学文摘社编号:
UNSPSC Code:
12352200
MDL number:
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agency

USP/NF, tested according to Ph. Eur.

form

coarse powder

autoignition temp.

698 °F

concentration

48.0-49.5% (Ethoxy (OC2H5) groups (dried substances)- EU Portal, GC)

refractive index

n20/D 1.47 (lit.)

viscosity

10 mPa.s

solubility

acetone: soluble, benzene: soluble, butyl acetate: soluble, carbon tetrachloride: soluble, ethanol: soluble, glycerol: insoluble, propylene glycol: insoluble, water: insoluble, xylene: soluble

density

1.14 g/mL at 25 °C (lit.)

application(s)

pharmaceutical (small molecule)

General description

Ethyl cellulose is a lipophilic polymer that possesses excellent membrane-forming ability and durability. It facilitates the formation of free films and is utilized in studying the dynamic interaction of polymer films with water.

Application

Ethyl cellulose has been used in the preparation of biostructures such as matrices, microspheres, microparticles, pellets and tablets for use in drug delivery. It has also been used in making chemically modified ethyl cellulose-based membrane for the purification of IgG.


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存储类别

13 - Non Combustible Solids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

法规信息

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Anna Jansson et al.
Microscopy and microanalysis : the official journal of Microscopy Society of America, Microbeam Analysis Society, Microscopical Society of Canada, 20(2), 394-406 (2014-02-26)
Drug release from oral pharmaceutical formulations can be modified by applying a polymeric coating film with controlled mass transport properties. Interaction of the coating film with water may crucially influence its composition and permeability to both water and drug. Understanding
A Martinac et al.
International journal of pharmaceutics, 291(1-2), 69-77 (2005-02-15)
Loratadine-loaded microspheres were prepared by spray-drying of dispersions, emulsions and suspensions differing in polymeric composition and solvents used. Conventional microspheres were obtained by spray-drying of dispersions composed of chitosan (CM) as only polymer, while composed microspheres were obtained by spray-drying
Tetsuya Ozeki et al.
Biological & pharmaceutical bulletin, 35(11), 1926-1931 (2012-11-06)
Production of drug nanoparticles is an effective strategy to enhance solubility and oral absorption of water-insoluble drugs. The handling of drug nanoparticles has been an important issue in drug formulation because nanoparticles easily aggregate each other and redispersion of these