Hirudin Fragments

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H9019 Ac-Hirudin Fragment 55-65 non-sulfated ≥97% (HPLC)  
H6894 [Tyr(SO3H)63]-Hirudin Fragment 54-65 ≥95% (HPLC) Hirudin fragment that binds to the regulatory exosite I on thrombin and the regulatory proexosite I on prothrombin. The interaction with thrombin prevents the thrombin-induced activation of clotting factor V. The interaction with prothrombin inhibits the formation of thrombin by factor Xa in the presence of factor Va.