6-METOXY-8- [4- (1- (5-FLUOR) -QUINOLIN-8-ILA-PIPERIDIN-4-ILA) -PIPERAZIN-1-yl] -QUINOLINE, and crystalline forms thereof. The present invention relates to 5-HT-1A-6-methoxy-8- [4- (1- (5-fluoro) -quinolin-8-yl-piperidin-4) -linker succinic acid salt forms -yl) piperazin-1-yl] -quinoline, as well as the crystalline forms thereof, pharmaceutical compositions thereof, and methods of use thereof.SAIS DE SUCCINATO DE 6-METOXI-8-[4-(1-(5~FLúOR)-QUINOLIN-8-ILA-PIPERIDIN-4-ILA)- PIPERAZIN-1 -ILA]-QUINOLINA, E FORMAS CRISTALINAS DESTES. A presente invenção refere-se a formas de sal de ácido succínico do agente de ligação 5-HT ~ 1A~ 6-metóxi-8-[4-(1-(5-flúor)-quinolin-8-iI- piperidin-4-il)-piperazin-1-iI]-quinolina, bem como as formas cristalinas destas, composições farmacêuticas destas, e métodos de uso destas.