Adipic acid, (E-number E205) is a white crystalline powder appearing as an acid in aquaeous circumstances. It is used to make lubricant components. As a food aditive it is a gelling aid.

• Chemical formula: C₆O₄H₁₀ , HOOC(CH₂)₄COOH
• Cas number: 124-04-9
• Chemical structure:

 H--O   H  H  H  H  
     \  |  |  |  |    
  O==C--C--C--C--C--C==O
        |  |  |  |   \
        H  H  H  H    O--H

External links

• adipic acid on chemicalland http://www.chemicalland21.com/arokorhi/industrialchem/organic/ADIPIC%20ACID.htm