CAS 9004-57-3 Ethyl cellulose, 6-9mPa.s, 5% in toluene/isopropanol 80:20

NAVIGATION

Ethyl cellulose, 6-9mPa.s, 5% in toluene/isopropanol 80:20

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Catalog Number

ACM9004573-9

CAS Number

9004-57-3

Product Name

Ethyl cellulose, 6-9mPa.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, 6-9 mPa.s, 5% in toluene/isopropanol 80:20, serves a multifaceted purpose in various applications. This low-density polymer, known for its excellent dimensional stability and minimal moisture absorption, is primarily utilized as a binder, film former, and thickener. In the pharmaceutical industry, ethyl cellulose is widely incorporated into oral and topical formulations. It acts as a hydrophobic coating agent for tablets and granules, modifying drug release, masking unpleasant tastes, and enhancing formulation stability by inhibiting oxidation. The polymer, when dissolved in a solvent, can produce water-insoluble films, and its higher-viscosity grades yield stronger, more durable coatings. It is also employed in drug microencapsulation, facilitating controlled drug release based on wall thickness and surface area. Additionally, in topical applications, it thickens creams, lotions, and gels, stabilizing emulsions when combined with suitable solvents. Beyond pharmaceuticals, ethyl cellulose finds use in cosmetics and food products, reflecting its versatility and reliability as a functional ingredient.

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

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