https://erowid.org/references/refs_view.php?ID=7325
Erowid.org: Erowid Reference 7325 : 2-Methoxymethyl-salvinorin B is a potent kappa opioid receptor...
The Index page for the reference article: Wang Y, Chen Y, Xu W, Lee DY, Ma Z, Rawls SM, Cowan A, Liu-Chen LY 2-Methoxymethyl-salvinorin B is a potent kappa...
2 methoxymethyl salvinorin b