百里香醌 (TQ) 又称 2-异丙基-5-甲基-1，4-苯醌，存在于一种三斜晶型。为黑种子挥发油的生物活性成分。TQ 在体外和体内均表现出抗炎、抗氧化和抗肿瘤作用。 Thymoquinone (TQ), also known as 2-isopropyl-5-methyl-1, 4-benzoquinone, is present in a crystalline triclinic form. It is the bioactive constituent of the volatile oil of black seed. TQ exhibits anti-inflammatory, antioxidant and anti-neoplastic effects both in vitro and in vivo. Thymoquinone has been used as an inhibitor of Escherichia coli ATP synthase and cell growth. It is also used as a drug against lower limb ischemia-reperfusion injury of sciatic nerve and femoral muscle.