Spectrum Chemical manufactures and distributes fine chemicals with quality you can count on including those with CAS number 83-73-8, Whether you call it Iodoquinol, 5 -7-Diiodo-8-hydroxyquinoline , 5 -7-Di-iodoquinolin-8-ol or Diiodohydroxyquinoline you can be assured the Iodoquinol products offered by Spectrum, meet or exceed the grade requirements or specifications for each individual product.