Spectrum Chemical manufactures and distributes fine chemicals with quality you can count on including those with CAS number 9003-55-8, Whether you call it Styrene/Butadiene Copolymer, 1 -3-Butadiene/Ethenylbenzene Copolymer, 1 -3-Butadiene/Styrene Copolymer or Styrene/Butadiene Copolymer you can be assured the Styrene/Butadiene Copolymer products offered by Spectrum, meet or exceed the grade requirements or specifications for each individual product.