Ethyl methyl cellulose

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Ethyl methyl cellulose

R=H or CH3 or CH2CH3
Other names
Methyl ethyl cellulose; Ethyl methyl ether of cellulose; E465; INS No. 465
Abbreviations MEC
  • none
E number E465 (thickeners, ...)
[C6H7O2(OH)x(OCH3)y(OC2H5)z]n, z = 0.57-0.8, y = 0.2-0.4, x = 3-(x+y)[1]
Molar mass 30000-40000 g/mol[1]
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Ethyl methyl cellulose is a thickener, vegetable gum, foaming agent and emulsifier. Its E number is E465.[1]

Chemically, it is a derivative of cellulose with ethyl and methyl groups attached by ether linkages. It can be prepared by treatment of cellulose with dimethyl sulfate and ethyl chloride in the presence of an alkali.[1]

See also[edit]


  1. ^ a b c d Methyl Ethyl Cellulose, monograph prepared at the 17th JECFA (1973), published in FNP 4 (1978) and in FNP 52 (1992)