Spectrum Chemical manufactures and distributes fine chemicals with quality you can count on including those with CAS number 9084-06-4, Whether you call it Sodium Poly(naphthaleneformaldehyde)sulfonate, Blancol , Sodium Salt of Sulfonated Naphthaleneformaldehyde Condensate or Naphthalenesulfonic Acid - Polymer with Formaldehyde - Sodium Salt you can be assured the Sodium Poly(naphthaleneformaldehyde)sulfonate products offered by Spectrum, meet or exceed the grade requirements or specifications for each individual product.