The present invention provides salts of (E)-N,N-dimethyl-4-((2-((5-((Z)-4,4,4-trifluoro-1-(3-fluoro-1H- indazol-5-yl)-2-phenylbut-1-en-1-yl)pyridin-2-yl)oxy)ethyl)amino )but-2-enamide represented by the formula I and acids, and crystals thereof, possessing a potential to be used as drug substance in pharmaceuticals.La presente invención proporciona sales de (E)-N,N-dimetil-4-((2-( (5-((Z)-4,4,4-trifluoro-1-(3-fluoro-1H-indazol-5-il)-2-fenilbut-1 -en-1-il)piridin-2-il)oxi)etil)amino)but-2-enamida representada por la fórmula I y ácidos, y cristales de las mismas, que poseen un potencial de usarse como principio activo en fármacos. [Quím. 1] (ver Fórmula).
