Spectrum Chemical manufactures and distributes fine chemicals with quality you can count on including those with CAS number 121-79-9, Whether you call it Propyl Gallate, 3 -4 -5-Trihydroxybenzoic Acid - Propyl Ester or Gallic Acid Propyl Ester you can be assured the Propyl Gallate products offered by Spectrum, meet or exceed the grade requirements or specifications for each individual product.