BDP FL NHS ester – CAS 146616-66-2


BDP FL NHS ester – CAS 146616-66-2 is provided by Santiago Lab (Prague, Czech Republic)

Purity (LC-MS)

min 95%

Package contents

BDP FL NHS ester

This compound is for research use only. We do not sell to patients.
25 mg

In stock

100 mg

In stock

250 mg

In stock


BDP FL NHS ester – CAS 146616-66-2


CAS: 146616-66-2

IUPAC Name: (2,5-dioxopyrrolidin-1-yl) 3-(2,2-difluoro-10,12-dimethyl-1-aza-3-azonia-2-boranuidatricyclo[,7]dodeca-3,5,7,9,11-pentaen-4-yl)propanoate

Other names: BDP FL NHS ester

Molecular weight: 389.2 g/mol

Molecular formula: C18H18BF2N3O4

InChI: InChI=1S/C18H18BF2N3O4/c1-11-9-12(2)22-15(11)10-14-4-3-13(23(14)19(22,20)21)5-8-18(27)28-24-16(25)6-7-17(24)26/h3-4,9-10H,5-8H2,1-2H3

Solubility: Good in organic solvents (DMF, DMSO, dichloromethane), limited in water

Excitation/absorption maximum: 503 nm

Emission maximum: 509 nm


Introducing BDP FL NHS ester, an advanced fluorescent dye designed for the 488 nm channel, serving as a superior alternative to fluorescein. Specifically crafted as an amino-reactive dye, it excels in labeling proteins and peptides.

With absorbance and emission spectra aligned with FAM excitation and emission channels, BDP FL NHS ester not only ensures enhanced photostability but also delivers exceptional brightness. Its fluorescence spectrum, narrower than that of FAM, offers superior brightness for monochromator-based instruments, allowing precise tuning of emission wavelength to the dye’s maximum.

This neutral dye boasts a low molecular weight and maintains a high quantum yield in conjugates. A versatile replacement, BDP FL NHS ester outperforms fluorescein (FAM), DyLight™ 488, Cy2™, and other 488 nm dyes with its unique combination of properties. Elevate your research with the unmatched qualities of BDP FL NHS ester.


  • Tian, J., Zhang, Y., Du, L. et al. Tailored self-assembled photocatalytic nanofibres for visible-light-driven hydrogen production. Nat. Chem. 12, 1150–1156 (2020).


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