Atractylodin is a sesquiterpenoid compound isolated from the rhizome of Atractylodes lancea or Atractylodes macrocephala, commonly used in traditional Chinese medicine (TCM). It exhibits anti-inflammatory and antimicrobial properties, aiding in the treatment of digestive disorders such as bloating and indigestion, as well as respiratory conditions. Research suggests potential benefits in enhancing immune function, supporting liver health, and providing neuroprotective effects to improve cognitive function. It is also incorporated into herbal formulations to reduce fatigue and boost overall vitality. As an analytical reference substance (≥98% purity), it serves as a standard for quality control in pharmaceutical and research applications.