Sodium carboxymethyl cellulose (CMC) wani nau'i ne na fiber ether na polymeric wanda aka samu ta hanyar gyaran sinadarai na cellulose na halitta. Tsarinsa ya ?unshi naúrar D-glucose da aka ha?a ta β (1→4) ha?in ha?in glucoside. Ana narkar da shi a cikin ruwan sanyi don samar da bayani mai danko. Danko na maganin yana da ala?a da albarkatun albarkatun bitamin DP (high, matsakaici, low), da kuma yanayin da ake ciki da kuma rushewa, alal misali: narkewa da yin amfani da karfi mai karfi ga maganin, idan CMC ya kasance ?ananan DS, ko rarraba maye gurbin ba daidai ba ne, to, an samar da ha?in gel; Sabanin haka, idan an rarraba babban DS da maye gurbin daidai gwargwado, an samar da ingantaccen bayani da daidaito.