An inactive metabolite/product of Thromboxane A2 (TBXA2): a compound involved in platelet activation and aggregation in case of a wound. Urinary analysis of TXB2 accurately reflects intrarenal TXA2 synthesis while measurement of 11-dehydro TBX2 (D230555) and 2,3-dinor thromboxane metabolites gives the best estimate of systemic TXA2 secretion.
TXB2 is a stable, biologically inert metabolite formed from the non-enzymatic hydrolysis of TXA2, which has a half-life of about 30 seconds. Urinary analysis of TXB2 accurately reflects intrarenal TXA2 synthesis, while measurement of 11-dehydro and 2,3-dinor thromboxane metabolites gives the best estimate of systemic TXA2 secretion.
ChEBI: A member of the class of thromboxanes B that is (5Z,13E)-thromboxa-5,13-dien-1-oic acid substituted by hydroxy groups at positions 9, 11 and 15.