Hexadecanedioic acid

Hexadecanedioic acid (CAS 505-54-4), also known as thapsic acid, is a long-chain dicarboxylic acid used as a functional building block in specialty chemical formulations.

Where is Hexadecanedioic acid used?

• Polymer synthesis: reactive intermediate and diacid monomer for nylon and polyester
• Lubricants and metalworking fluids: precursor to complex ester base fluids with high-temperature stability
• Personal care: wax esters and emollient systems for controlled spreading and surface modification
• Food: emulsifiers and release agents from food-grade ester derivatives
• Its bifunctional acid structure makes it a reactive intermediate for polymer synthesis.

Good to know: Food-grade and high-purity grades are available for ester synthesis destined for food or cosmetic end use, where purity is critical.

Commercial specifications

• Purity typically 98% or higher
• Food-grade and high-purity grades available for tighter specification compliance