Description
 2-keto-D-gluconic acid is found in the carrageenan polysaccharide of Irish moss and can be used as a stabilizer in the storage of biological materials. 2-keto-D-gluconic acid exhibits antimicrobial properties against species of Pseudomonas that cause plant disease. Genes for metabolism of 2-keto-d-gluconic acid are controlled by the UxuR regulon in E. coli. 2-keto-D-gluconic acid is converted to D-mannonate by the enzyme fructuronate reductase (EC 1.1.1.57). 2-keto-D-gluconic acid hemicalcium salt can be used to make D-erythorbic acid using an α-amylase enzyme. It can also be used to prepare D-ribulose and D-arabinose by heating in pyridine with a nickel acetate catalyst. 
  Product Specifications 
 2-Keto-D-gluconic  acid, hemicalcium salt monohydrate; 
 D-Arabino-2-hexulopyranosonic  acid hemicalcium salt monohydrate; 
 Calcium 2-keto-D-gluconate hydrate; 
 Fructuronic  acid; 
  Formula: 2 C6H9O7  • Ca • 2 H2O 
  MW: 462.38 g/mol 
  Storage/Handling: Store at -20°C.