BDP 581/591 NHS ester

• CAT Number: I043058
• CAS Number: 654651-21-5
• Molecular Formula: C26H22BF2N3O4
• Molecular Weight: 489.28
• Purity: ≥95%
• IUPAC Name: (2,5-dioxopyrrolidin-1-yl) 3-[2,2-difluoro-12-[(1E,3E)-4-phenylbuta-1,3-dienyl]-3-aza-1-azonia-2-boranuidatricyclo[7.3.0.03,7]dodeca-1(12),4,6,8,10-pentaen-4-yl]propanoate
• InChI: InChI=1S/C26H22BF2N3O4/c28-27(29)30-20(9-5-4-8-19-6-2-1-3-7-19)10-12-22(30)18-23-13-11-21(31(23)27)14-17-26(35)36-32-24(33)15-16-25(32)34/h1-13,18H,14-17H2/b8-4+,9-5+
• InChIKey: HHJAMTPLXKVOAY-KBXRYBNXSA-N
• SMILES: [B-]1(N2C(=CC=C2CCC(=O)ON3C(=O)CCC3=O)C=C4[N+]1=C(C=C4)/C=C/C=C/C5=CC=CC=C5)(F)F

BDP 581/591 NHS ester（Cat No.:I043058）is a borondipyrromethene (BDP) fluorophore that emits in the red-orange spectral range, offering excellent fluorescence properties including high brightness, quantum yield, and photostability. The NHS ester group enables easy conjugation to primary amines in proteins, peptides, and other biomolecules. This makes BDP 581/591 NHS ester ideal for applications in fluorescence microscopy, flow cytometry, and live-cell imaging. It is widely used in biochemical, pharmacological, and cell biology research to study protein interactions, cellular processes, and molecular dynamics. The compound is soluble in organic solvents like DMSO and DMF.