癸二酸，结构式HOOC(CH₂)₈COOH。

白色片状结晶。微溶于水，溶于乙醇、乙醚。可燃。基本无毒，但生产原料甲酚有毒。存放时避免与液酸和碱接触，于阴凉通风处贮存，防火防潮。

Sebacic acid is a naturally occurring dicarboxylic acid with the structure (HOOC)(CH₂)₈(COOH).

In its pure state it is a white flake or powdered crystal. The product is described as non-hazardous, though in its powdered form it can be prone to flash ignition (a typical risk in handling fine organic powders).