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JFX 650, NHS ester

JFX 650, NHS ester has an excitation peak at 650 nm and an emission peak at 667 nm. JFX 650, NHS ester is a red fluorescent deuterated Janelia Fluor dye supplied with an NHS ester reactive group for the labeling of primary amines and shows enhanced brightness, photostability and chromostability.

Excitation & emission spectra

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Key facts

Excitation maximum
650 nm
Emission maximum
667 nm
Extinction coefficient
17600
Quantum yield
0.53
Molecular weight
637.86

JFX 650, NHS ester has an excitation maximum at 650 nm and an emission maximum at 667 nm, a Stokes shift of 17 nm. Its extinction coefficient is 17600 M⁻¹cm⁻¹.

Frequently asked questions

What is JFX 650, NHS ester?
JFX 650, NHS ester has an excitation peak at 650 nm and an emission peak at 667 nm. JFX 650, NHS ester is a red fluorescent deuterated Janelia Fluor dye supplied with an NHS ester reactive group for the labeling of primary amines and shows enhanced brightness, photostability and chromostability.