Senwayer Supply Food Grade Gallnut Extract Gallic acid CAS 149-91-7 Gallic acid

Senwayer Supply Food Grade Gallnut Extract Gallic acid CAS 149-91-7 Gallic acid

• Product description
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• Product name	Gallic acid
  CAS No.	149-91-7
  Molecular Formula	C7H6O5
  Molecular weight	170.12
  Grade Standard	Cosmetic Grade

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• Description
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• Gallic acid (also known as 3,4,5-trihydroxybenzoic acid) is a trihydroxybenzoic acid with the formula C6H2(OH)3CO2H. It is classified as a phenolic acid. It is found in gallnuts, sumac, witch hazel, tea leaves, oak bark, and other plants. It is a white solid, although samples are typically brown owing to partial oxidation. Salts and esters of gallic acid are termed "gallates".

   

   

   

   

   

   

   

   

   

   

   

   

   
   
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• Product application
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• It is used in the pharmaceutical industry as a standard for determining the phenol content (a large group of several hundred chemical substances) of various analytes by the Folin-Ciocalteau assay. In addition, it is used as a starting material in the synthesis of the naturally occurring alkaloid mescaline, and as an ink dye by early photographers to develop images. When heated to 200°–250° C, gallic acid splits into pyrogallol (pyrogallic acid) and carbon dioxide.

   

   

   

   

   

   

   
   
   
   

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