Spectrum Chemical manufactures and distributes fine chemicals with quality you can count on including those with CAS number 9004-62-0, Whether you call it Hydroxyethyl Cellulose, Cellulose 2-Hydroxyethyl Ether , HEC or Hyetellose you can be assured the Hydroxyethyl Cellulose products offered by Spectrum, meet or exceed the grade requirements or specifications for each individual product.