Spectrum Chemical manufactures and distributes fine chemicals with quality you can count on including those with CAS number 23147-58-2, Whether you call it Glycoaldehyde Dimer, 1 -4-Dioxane-2 -5-diol or Hydroxyacetaldehyde Dimer you can be assured the Glycoaldehyde Dimer products offered by Spectrum, meet or exceed the grade requirements or specifications for each individual product.