4-(5-Fluoropyridin-3-yl)but-3-en-2-amine is a fluorinated pyridine derivative featuring an amine-functionalized butenyl side chain. This compound is of interest in pharmaceutical and agrochemical research due to its structural versatility, combining a fluoropyridine core with an unsaturated amine moiety. The fluorine substituent enhances metabolic stability and binding affinity, while the conjugated double bond offers reactivity for further functionalization. Its amine group provides a handle for derivatization, making it a valuable intermediate in the synthesis of biologically active molecules. The compound’s well-defined structure and synthetic utility make it suitable for applications in medicinal chemistry, particularly in the development of kinase inhibitors or other targeted therapeutics.