florfenicol; fluprofen 
Chemical structure: ()
Formula: C12H14CL2FNO4S
Chemical name: [R - (R1.T)] -2,2 - dichloro-N-{trifluoromethyl) -2 - hydroxy-2 - [4 - (methylsulfonyl) phenyl] ethyl} acetamide
MW: 358.2   CAS No :76639 -94-6 [1]     MDL: MFCD00864834 [2]
Properties: white or almost white crystalline powder, odorless, bitter taste. This product is easily dissolved in dimethyl formamide, dissolved in methanol, slightly soluble in glacial acetic acid, slightly soluble in water or chloroform.
Content: Content: (dry goods) ≥ 98% Moisture: ≤ 0.5% Residue: ≤ 0.1% Heavy metal: ≤ 20ppm Acidity: 4.5-6.5 Chloride: ≤ 0.02% fluorine: ≥ 4.8% related substances: Impurity spots sum ≤ 2%