Carboxymethyl cellulose, wanda kuma aka sani da CMC, wani samfurin cellulose ne tare da ƙungiyoyin carboxymethyl (-CH2-COOH) da aka ɗaure zuwa wasu ƙungiyoyin hydroxyl na kashin bayan cellulose. Yana da ruwa mai narkewa, mara wari, kuma mara ɗanɗano fari zuwa farar foda ko granule. Carboxymethyl cellulose ana yawan amfani dashi azaman mai gyara danko ko kauri, emulsifier, da stabilizer a cikin masana'antu da aikace-aikacen abinci iri-iri.