Adipic acid is the organic compound with the formula (ch₂)₄(cooh)₂. From an industrial perspective, it is the most important dicarboxylic acid: about 2.5 billion kilograms of this white crystalline formula: c6h10o4 iupac id: hexanedioic acid melting point: 152.1 °c molar mass: 146.1412 gmol density: 1.36 gcm³ boiling point: 337.5 °c soluble in: water