4‐fluoro‐phenethylammonium bromide (4FPEABr; CAS Number: 1807536-06-6) is a precursor in the preparation of perovskite solar cells. With a purity level > 99%, Borun New Material - ChemBoruns 4‐fluoro‐phenethylammonium bromide exhibits a superior quality for stable results and premium performance.