13962-54-4 3alpha,17beta-Dipyrrolidin-1'-yl-5alpha-androstane bismethiodide Pyrrolidinium, 1,1'-((3alpha,5alpha,17beta)-androstane-3,17-diyl)bis(1-methyl-, diiodide Pyrrolidinium, 1,1'-(5alpha-androstan-3alpha,17beta-ylene)bis(1-methyl-, diiodide