Spectrum Chemical manufactures and distributes fine chemicals with quality you can count on including those with CAS number 50-03-3, Whether you call it Hydrocortisone Acetate, Cortisol 21-Acetate , Cortisol Acetate or Hydrocortisone 21-Acetate you can be assured the Hydrocortisone Acetate products offered by Spectrum, meet or exceed the grade requirements or specifications for each individual product.