Spectrum Chemical manufactures and distributes fine chemicals with quality you can count on including those with CAS number 9005-37-2, Whether you call it Propylene Glycol Alginate, Hydroxypropyl Alginate , Algin Derivative or Propane-1 -2-diol Alginate you can be assured the Propylene Glycol Alginate products offered by Spectrum, meet or exceed the grade requirements or specifications for each individual product.