Spectrum Chemical manufactures and distributes fine chemicals with quality you can count on including those with CAS number 53-36-1, Whether you call it Methylprednisolone Acetate, 11Beta -17 -21-Trihydroxy-6alpha-methylpregna-1 -4-diene-3 -20-dione 21-Acetate or Methylprednisolone 21-Acetate you can be assured the Methylprednisolone Acetate products offered by Spectrum, meet or exceed the grade requirements or specifications for each individual product.