CC(=O)C1CCC2C3CC=C4CC(SC(=N)N)CCC4(C)C3CCC12C.Cc1ccc(S(=O)(=O)O)cc1
The donor in a hydrogen bond is usually a strongly electronegative atom such as N, O, or F that is covalently bonded to a hydrogen bond. How many hydrogen bond donors does the molecule have?