Carboxymethyl cellulose

Cellulose derivative grafted with carboxymethyl groups Carboxymethyl cellulose Names Other names Carboxymethylcellulose; carmellose; E466 Identifiers CAS Number 9004-32-4 Y ChEBI CHEBI:85146 N ChEMBL ChEMBL1909054 N ChemSpider none ECHA InfoCard 100.120.377 E number E466 (thickeners, ...) UNII 05JZI7B19X N CompTox Dashboard (EPA) DTXSID7040441 Properties Chemical formula variable Molar mass variable Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). N verify (what is YN ?) Infobox references Chemical compound Carboxymethyl cellulose (CMC) or cellulose gum is a cellulose derivative with carboxymethyl groups (-CH2-COOH) bound to some of the hydroxyl groups of the glucopyranose monomers that make up the cellulose backbone. It is often used in its sodium salt form, sodium carboxymethyl cellulose. The addition of carboxylic acid groups to the cellulose backbone allows carboxymethyl cellulose to be dissolved in water unlike natural cellulose. This allows its use in numerous food and pharmaceutical applications that require water-soluble polymers. Preparation Carboxymethyl cellulose is synthesized by treating cellulose with ch