Spectrum Chemical manufactures and distributes fine chemicals with quality you can count on including those with CAS number 117-81-7, Whether you call it Dioctyl Phthalate, Bis(2-ethylhexyl) Phthalate , DOP or Diethylhexyl Phthalate you can be assured the Dioctyl Phthalate products offered by Spectrum, meet or exceed the grade requirements or specifications for each individual product.