FM1-43

• CAT Number: M099117
• CAS Number: 149838-22-2
• Molecular Formula: C30H49Br2N3
• Molecular Weight: 611.54
• Purity: ≥95%
• Synonyms: 3-[4-[(E)-2-[4-(dibutylamino)phenyl]ethenyl]pyridin-1-ium-1-yl]propyl-triethylazanium;dibromide
• InChI: InChI=1S/C30H49N3.2BrH/c1-6-11-23-32(24-12-7-2)30-18-16-28(17-19-30)14-15-29-20-25-31(26-21-29)22-13-27-33(8-3,9-4)10-5;;/h14-21,25-26H,6-13,22-24,27H2,1-5H3;2*1H/q+2;;/p-2
• InChIKey: VZUVCAGXYLMFEC-UHFFFAOYSA-L
• SMILES: CCCCN(CCCC)C1=CC=C(C=C1)/C=C/C2=CC=[N+](C=C2)CCC[N+](CC)(CC)CC.[Br-].[Br-]

FM1-43（Cat No.:M099117）is a fluorescent dye commonly used in cell biology research to study membrane dynamics and endocytosis. It is a lipophilic dye that intercalates into cell membranes and fluoresces when exposed to light, allowing researchers to visualize cellular processes such as vesicle trafficking, endocytic events, and exocytosis. FM1-43 is particularly useful for tracking synaptic vesicle recycling in neurons, making it valuable in neuroscience studies. Due to its ability to label cell membranes without disrupting cellular function, it has broad applications in membrane biology and the study of cellular signaling pathways.