Customers' Q&A

Why my xanthene amidites and supports does not fluoresce?

Xanthene amidites and supports (FAM, TET, HEX, JOE, SIMA, R6G, VIC-derivatives) have data on fluorescence with ~500/530 excitation/emission maxima, but all products are colourless or slightly coloured substances. How is it possible?

Updated 2 days ago

What is the solubility of BDP FL hydrazide in water?

The water solubility of BDP FL hydrazide dye in water

Updated 11 days ago

We attempted to attach sulfo-Cyanine7 NHS ester to modified triphosphate, but the resultant product had really low fluorescence.

Low fluorescence of sulfo-Cyanine7 conjugated to triphosphate measured by Agilent 1260 Infinity Fluorescence Detector.

Updated 12 days ago

Is it feasible to use sulfo-Cyanine maleimide labels in distilled water?

Using distilled water for maleimide labeling.

Updated 17 days ago

Are NIR dyes visible in the daylight?

Is there any visible color change when excited?

Updated 1 month ago

What is the proper color of Cyanine5 succinimidyl ester?

This article is to explain the possible appearance and color range you may observe for Cyanine 5 NHS ester powder/thin films.

Updated 1 month ago

Does the fluorescence of Cyanine dyes depend on pH?

The fluorescence dependency of Cyanine dyes such as Cyanine3, sulfo-Cyanine3, Cyanine5, sulfo-Cyanine5, and boron-dipyrromethene dyes such as BDP TMR, BDP 630/650 on pH conditions.

Updated 6 months ago

What are the solubility of sulfo-Cyanine7 amine and Cyanine7 amine in water?

The water solubility of Cyanine7 amine derivatives.

Updated 8 months ago

Any suggestions for FRET pair of dyes?

FRET pairs of dyes we can recommend from our catalog products

Updated 10 months ago

Naming of PEGs by Lumiprobe

About how we name our PEG products and why our PEG3 products are PEG2 in other manufacturers and vice versa

Updated 1 year ago

What is the color of sulfo-Cyanine7.5 NHS ester after dissolving in water and in DMF?

The color of sulfo-Cyanine7.5 NHS ester in water and in DMF solutions.