|  | L-Valine 
        
          | Chemical Name£º | L-2-Amino-3-methylbutyric acid |  
          | Structure Formula£º |  |  
          | Molecular Formula£º | C5H11NO2 |  
          | Molecular Weight£º | 117.15 |  
          | Cas No£º | [72-18-4] |  
          | Characteristics£º | White crystals or crystalline powder |  
          | Quality Standards£º | USP24, FCCIV and etc. |  
          |  |  
          | Item | Specifications |  
          | USP24 | FCCIV |  
          | Appearance | White crystals or crystalline powder |  
          | Assay,% | 98.5~101.5 | 98.5~101.5 |  
          | Specific optical rotation | +26.6¡ã~ +28.8 | +26.6¡ã~ +29.0¡ã |  
          | PH Value | 5.5~7.0 | 5.5~7.0 |  
          | Loss on drying, % | ¡Ü0.3 | ¡Ü0.3 |  
          | Residue on ignition, % | ¡Ü0.1 | ¡Ü0.1 |  
          | Sulfate (as SO4), % | ¡Ü0.03 | - - - |  
          | Chloride (as Cl),% | ¡Ü0.05 | - - - |  
          | Heavy Metals (as Pb), % | ¡Ü0.0015 | ¡Ü0.002 |  
          | Lead, % | - - - | ¡Ü0.001 |  
          | Iron, % | ¡Ü0.003 | - - - |  
          | Organic volatile impurities | Meets the requirements | - - - |  
          |  |  
          | The Characteristics and Uses£º |  |  
          | Package and Transport£º | Cardboard drum double polyethylene bags inside (25kgs) |  
          | Storage£º | Cool, dry, dark in closed containers, recommended limit 2 year. |  |