Spectrum Chemical manufactures and distributes fine chemicals with quality you can count on including those with CAS number 57-30-7, Whether you call it Phenobarbital Sodium, Sodium-5-ethyl-5-phenylbarbiturate or Sodium Phenylethylbarbiturate you can be assured the Phenobarbital Sodium products offered by Spectrum, meet or exceed the grade requirements or specifications for each individual product.