Ethyl cellulose is an organic compound related to cellulose. As an excipient, it is used as a filler and a binder. Ethyl cellulose is approved for use as a food additive by the U.S. Food and Drug Administration (FDA) 1.
Food and Drug Administration. EAFUS: A Food Additive Database. http://www.foodsafety.gov/~dms/eafus.html. 10-17-2008. 12-4-2008.