Ketoprofen 1) CSA NO.:22071-15-4 2) Molecular formula: C16H14O3 ... ) Molecular weight: 254.2806 4) Assay: More than 99.0% Ketoprofen Characters: A white or almost white crystalline powder, odorless or ... infrared absorption spectrum, is concordant with the reference spectrum on ketoprofen.Melting point: 93~96°CAssay(HPLC): ≥99.0%Related substances ...