Spectrum Chemical manufactures and distributes fine chemicals with quality you can count on including those with CAS number 9016-45-9, Whether you call it Nonidet* P40 Solution, Nonoxynol-40 or Nonylphenyl-Polyethylene Glycol you can be assured the Nonidet* P40 Solution products offered by Spectrum, meet or exceed the grade requirements or specifications for each individual product.