BDP 558/568 NHS ester

• CAT Number: I043056
• CAS Number: 150173-73-2
• Molecular Formula: C20H16BF2N3O4S
• Molecular Weight: 443.23
• Purity: ≥95%
• IUPAC Name: (2,5-dioxopyrrolidin-1-yl) 3-(2,2-difluoro-12-thiophen-2-yl-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/C20H16BF2N3O4S/c22-21(23)24-13(6-10-20(29)30-26-18(27)8-9-19(26)28)3-4-14(24)12-15-5-7-16(25(15)21)17-2-1-11-31-17/h1-5,7,11-12H,6,8-10H2
• InChIKey: DPIQWSPHMYACPD-UHFFFAOYSA-N
• SMILES: [B-]1(N2C(=CC=C2CCC(=O)ON3C(=O)CCC3=O)C=C4[N+]1=C(C=C4)C5=CC=CS5)(F)F

BDP 558/568 NHS ester（Cat No.:I043056）is a borondipyrromethene (BDP) fluorophore derivative emitting in the yellow spectral region. It exhibits high fluorescence quantum yield, brightness, and photostability. The NHS ester functional group enables efficient conjugation to primary amines in biomolecules such as proteins and peptides, facilitating their fluorescent labeling. This property makes it valuable for applications in fluorescence polarization, two-photon experiments, and reactive oxygen species (ROS) probing. BDP 558/568 NHS ester is soluble in organic solvents like DMF, DMSO, and ethyl acetate, and is typically stored at -20°C, protected from light. ​