Spectrum Chemical manufactures and distributes fine chemicals with quality you can count on including those with CAS number 104-67-6, Whether you call it <greek>g<P>-Undecalactone, Gamma-Undecalactone or Undecanoic gamma-Lactone you can be assured the <greek>g<P>-Undecalactone products offered by Spectrum, meet or exceed the grade requirements or specifications for each individual product.