BLANOSE 7H3SF is the sodium salt of carboxymethylcellulose (CMC). It has been manufactured in accordance with the current joint IPEC-PQG Good Manufacturing Practices Guide for Pharmaceutical Excipients. It is intended for excipient use only. This product is made in three basic viscosity ranges, from 25 mPa·s in a 2% solution to 4500 mPa·s in a 1% solution.