Modified form of the hydrochloride of the R (-) - N- (4,4-di (3-methylthien-2-yl) but-3-enyl) nipecotic acid,

Herein it is presented with a CLORHIDRATO of R (-) - N - (4,4 - di (3 - methylthien - 2 - yl) but - 3 - enyl) nipecotic IN YOUR pure and stable anhydrous form.