Spectrum Chemical manufactures and distributes fine chemicals with quality you can count on including those with CAS number 868-14-4, Whether you call it Potassium Bitartrate, Cream of Tartar , Potassium Acid Tartrate , Potassium Hydrogen Tartrate or Potassium Tartrate you can be assured the Potassium Bitartrate products offered by Spectrum, meet or exceed the grade requirements or specifications for each individual product.