[{"from": "human", "value": "Please give me some details about this molecule. [C][C][=Branch1][C][=O][N][C][C][Branch2][#Branch2][C][C][Branch2][Ring1][Ring1][C][Branch1][=Branch1][O][C][Ring1][=Branch1][O][C][O][S][=Branch1][C][=O][=Branch1][C][=O][O][O][C][C][Branch2][#Branch1][=N][C][Branch2][#Branch1][Branch2][C][Branch1][N][C][Branch1][Ring2][O][Ring1][=Branch1][C][=Branch1][C][=O][O][O][C][C][Branch2][Branch1][O][C][Branch2][Ring2][=C][C][Branch1][=Branch2][C][Branch1][Ring2][O][Ring1][=Branch1][C][O][O][C][C][Branch2][Ring1][Ring2][C][Branch1][S][C][Branch1][N][C][Branch1][Ring2][O][Ring1][=Branch1][C][=Branch1][C][=O][O][O][O][O][S][=Branch1][C][=O][=Branch1][C][=O][O][O][S][=Branch1][C][=O][=Branch1][C][=O][O][N][S][=Branch1][C][=O][=Branch1][C][=O][O][O][O][S][=Branch1][C][=O][=Branch1][C][=O][O][O]"}, {"from": "gpt", "value": "The molecule is an ultralow-molecular-weight heparin (ULMWH) (Mw: 2000-3000 daltons)consisting of a polydisperse mixture of oligomeric heparin fragments with potential anticoagulant activity. Ultralow-molecular-weight heparin AVE5026 binds to and activates antithrombin III (ATIII), which may result in the inhibition of activated factor Xa and, to a much lesser extent, factor IIa (thrombin) and so the inhibition of fibrin formation. Compared to low-molecular-weight heparins (LMWHs), AVE5026 exhibits an even higher ratio of anti-Factor Xa to anti-Factor IIa activity (>30:1). Compared to unfractionated heparins, the use of LMWHs is associated with lower incidences of major bleeding, osteoporosis and heparin-induced thrombocytopenia. Like LMWHs, this agent may inhibit tumor growth by regulating angiogenesis and apoptosis. AVE5026 is prepared by partial depolymerization of unfractionated porcine mucosal heparin."}]