HEC; ah15; bl15; j164; oets; HEC1; KNTC2; hespan; tylosep; natrosol; 2-hydroxyethylcelluloseether;ah15;aw15(polysaccharide);aw15[polysaccharide];bl15;cellosize;Hydroxyethyl cellulose - Viscosity 1500 ~ 2500;The blood coHydroxyethyl cellulose etherngeals the appearance board CAS NO:9004-62-0