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    2. Professional development and production of pharmaceutical intermediate products

      The main products are: rebamipide, 2,3-dibromo-2-butene-1,4-diol, 2-acetoxyisobutyryl chloride, ethyl silicate (condensation), anhydrous lithium bromide, a Methylamine methanol solution, tetradecyl trimethyl ammonium bromide.

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      changteng new pharmaceutical

      N,N'-diphenylguanidine monohydrobromide
      Molecular formula: C13H14BrN3
      Molecular weight: 292.1744
      Quality index: Assay(%) ≥ 99.50    
      Melting point (℃): 158 -163 ℃    
      Appearance: white crystalline granular powder    
      Solubility: soluble in alcohol and water, insoluble in alkali solution, slightly soluble in ether and other organic solvents.    
      Loss on drying (%)<0.1    
      Assay of heavy metals (mg/l)<2    
      Ash (%)<0.03    
      Moisture (%)<0.03  
      Packing: Yellow cardboard drum, 25kg/drum 
      Uses: Used for synthetic rubber additives and fluxes

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