start-q_Buprenorphine Optional Druglikeness Properties of MOL 644073 -------------------------------------------------- Molecular Weight: 467.6 No. of Hydrogen Bond Donors: 2 No. of Hydrogen Bond Acceptors: 2 No. of Rotatable Bonds: 7 No. of Nitrogen and Oxygen Atoms: 5 No. of Rings: 7 XLOGP3 of MOL 644073: 4.47