Brexpiprazole estimation in Bulk and Formulation through Chromotography has been developed by an Liquid chromatographic mode applied through the Ascentis column the eluant used to flow the sample particle to the solid porous particles is MeCn:C7H17NO3[50:50] and Tem of 300C was set up throughout the method and eluant flowed at a velocity of 1 ml/min and the obtained λmax is 218nm through spectrum and after the effluent stream of eluant the analyte detected at 2.437min and SST, Similarity variables are under the acceptance limits. An analysis of linearity between levels of 25% and 150% revealed an R2 value of 0.999. For repeatability and intermediate precision, it was discovered that the precision was 0.6. 0.058 g/ml and 0.176 g/ml, respectively are the detection and quantification.99.89% repossession rate. R2 = 51675x + 1765.6. The approach was designed to be simple and cost-effective due to shorter retention times and shorter run times.