SMILES: C1CC[C@]2([C@H]3CC4=C([C@]2(C1)CCN3CC5CCC5)C=C(C=C4)O)O.[C@H]([C@@H](C(=O)O)O)(C(=O)O)O
Description: The molecule is the (S,S)-tartaric acid salt of butorphanol. It is used for relief or moderate to severe pain. It has a role as a kappa-opioid receptor agonist, a mu-opioid receptor agonist and an opioid analgesic. It is a morphinane alkaloid and a tartrate salt. It contains a butorphanol.