Spectrum Chemical manufactures and distributes fine chemicals with quality you can count on including those with CAS number 5104-49-4, Whether you call it Flurbiprofen, (±, )-2-(2-Fluoro-4-biphenylyl)propionic Acid or (+)-2-(2-Fluoro-[1 -1'-biphenyl]-4-yl)propionic acid | you can be assured the Flurbiprofen products offered by Spectrum, meet or exceed the grade requirements or specifications for each individual product.