Category:
Active Pharmaceutical Ingredients
CAS NO:
9000-11-7
Standard:
In-house Standards,
CMC (Carboxymethyl Cellulose) is a water-soluble anionic polymer derived from cellulose via etherification. Its core process involves reacting alkali cellulose with chloroacetic acid to introduce carboxymethyl groups, yielding the sodium salt form. While molecular structure varies by degree of substitution, typical parameters include CAS 9004-32-4.
Storage requires dry conditions below 30°C to prevent clumping. Inhalation of dust may cause respiratory irritation; appropriate PPE is mandatory during handling. Not suitable for parenteral administration without specific purification grades.