Spectrum Chemical manufactures and distributes fine chemicals with quality you can count on including those with CAS number 9004-95-9, Whether you call it Brij* 52, Brij 52 , Ceteth-2 or Polyoxyethylene (2) Cetyl Ether you can be assured the Brij* 52 products offered by Spectrum, meet or exceed the grade requirements or specifications for each individual product.