Salvinorin-A is a chemical compound (C23H28O8), the main active psychotropic constituent of salvia divinorum, or diviner's sage (c.f.). Recent research suggests that this diterpene acts as a kappa opioid receptor agonist.
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... expectation that Vronsky is about to propose to her.
The following morning Stiva and Vronsky are at the station to welcome Anna and Vronsky's mother respectively. This ...