CAS 9004-57-3 Ethyl cellulose, viscosity 45-55mPa.s, 5 % in toluene/isopropanol 80:20

NAVIGATION

Ethyl cellulose, viscosity 45-55mPa.s, 5 % in toluene/isopropanol 80:20

PRICE INQUIRY

Catalog Number

ACM9004573-12

CAS Number

9004-57-3

Product Name

Ethyl cellulose, viscosity 45-55mPa.s, 5 % in toluene/isopropanol 80:20

Category

Polymers

IUPAC Name

(2R,3R,4S,5S,6R)-5-[(2S,3R,4S,5S,6R)-4,6-bis(ethoxymethyl)-3,5-dihydroxyoxan-2-yl]oxy-3-ethoxy-6-(hydroxymethyl)oxane-2,4-diol

Molecular Weight

440.5g/mol

Molecular Formula

C19H36O11

Canonical SMILES

CCOCC1C(C(OC(C1O)OC2C(OC(C(C2O)OCC)O)CO)COCC)O

InChI

InChI=1S/C19H36O11/c1-4-25-8-10-13(21)12(9-26-5-2)29-19(14(10)22)30-16-11(7-20)28-18(24)17(15(16)23)27-6-3/h10-24H,4-9H2,1-3H3/t10-,11+,12+,13-,14+,15-,16+,17+,18+,19-/m0/s1

InChI Key

GJQHNBFXPPDVQM-KSQRYXQLSA-N

Melting Point

240-255 °C

Density

1.07-1.18

Solubility

INSOL IN GLYCERIN AND PROPYLENE GLYCOL;FREELY SOL IN MIXT OF AROMATIC HYDROCARBONS WITH ALCOHOL;Has an ethyl degree of substitution (DS) in the range of ~2.2 - 2.7. ... water soluble at DS ~1.2 ... Above a DS of ca 2.5, soluble in many polar solvents.;Soluble in most organic liquids

Application

Ethyl cellulose, with a viscosity of 45-55 mPa.s at a 5% concentration in toluene/isopropanol (80:20), serves multiple roles across various industries by utilizing its unique properties as a low-density polymer. It functions predominantly as a binder, film former, and thickener. In pharmaceutical applications, ethyl cellulose is primarily employed as a hydrophobic coating agent for tablets and granules, enhancing their stability and modifying drug release rates. Its ability to form water-insoluble films, whether used alone or modified with additives like hypromellose or plasticizers, makes it valuable in producing durable, controlled-release coatings. Furthermore, ethyl cellulose facilitates the production of hard, low-friability tablets and is instrumental in drug microencapsulation, which regulates release rates based on the microcapsule's wall thickness and surface area. Beyond pharmaceuticals, ethyl cellulose's thickening and stabilizing qualities are also leveraged in topical formulations, cosmetics, and food products. Its diverse solubility in various solvents allows for a wide range of varnish formulations, underscoring its versatility across multiple domains.

Color/Form

WHITE NEEDLES FROM BENZENE;FREE-FLOWING, WHITE TO LIGHT TAN POWDER;AVAILABLE COMMERCIALLY AS CLEAR FILM OR SHEET;White, granular, thermoplastic solid

Complexity

481

Covalently-Bonded Unit Count

EC Number

618-384-9

Exact Mass

440.225762g/mol

Formal Charge

Heavy Atom Count

Log P

5.5 (LogP)

Monoisotopic Mass

440.225762g/mol

Other Experimental

MEDIUM-TYPE VISCOSITY GRADE CONTAINS LESS THAN 46.5% ETHOXY GROUPS; STANDARD-TYPE VISCOSITY GRADE CONTAINS 46.5% OR MORE;Lowest density of commmercial cellulose plastics; high dielectric strength; softening point 100-130 °C;Inert to alkalies and dilute acids; compatible with resins, waxes, oils, and plasticizers;ODORLESS & TASTELESS /CELLULOSE ETHERS/;The ethoxyl content of ethyl cellulose affects thermal behavior.;Sol in ethyl acetate, ethylene dichloride, benzene, toluene, xylene, butyl acetate, acetone, methanol, ethanol, butanol, carbon tetrachloride. /47% product/;FREELY SOL IN CHLOROFORM, CYCLOHEXANE FREELY SOL IN METHYL ACETATE /MEDIUM VISCOSITY/;/Ethyl cellulose/ forms films of good thermostability and excellent flexibility and toughness.

Refractive Index

Index of refraction: 1.47;FORMS FILMS THAT HAVE REFRACTIVE INDEX OF ABOUT 1.47

Rotatable Bond Count

Stability

Very stable chemically /Cellulose ethers/

XLogP3

-2.4

If you have any other questions or need other size, please get a quote.