--- title: Dye Directory - Fluorophore Entries description: For each entry in the dye directory, there is a corresponding "Dye Profile" page that houses the details about that particular dye.   In this example, we'll be referencing the "Dye Profile" for Alexa --- [Skip to content](https://help.fluorofinder.com/dye-directory-fluorophore-entries#main-content) English Show submenu for translations [![Fluorofinder-Logo-Full-Color-RGB](https://help.fluorofinder.com/hubfs/Fluorofinder-Logo-Full-Color-RGB.svg)](https://app.fluorofinder.com/) - Home - Products - Pricing - Blog - Company Open main navigation Close main navigation - Home - Products - Pricing - Blog - Company - English Show submenu for translations Hello. How can we help you? - There are no suggestions because the search field is empty. 1. [FluoroFinder Help Center](https://help.fluorofinder.com/?hsLang=en) 2. [Dye Directory Help Files](https://help.fluorofinder.com/dye-directory-help-files?hsLang=en) # Dye Directory - Fluorophore Entries For each entry in the dye directory, there is a corresponding "Dye Profile" page that houses the details about that particular dye.   In this example, we'll be referencing the "Dye Profile" for Alexa Fluor 488 ![](https://help.fluorofinder.com/hs-fs/hubfs/image-png-Jul-24-2025-03-23-39-1761-PM.png?width=688&height=102&name=image-png-Jul-24-2025-03-23-39-1761-PM.png) **At the very top of the Dye Profile we can see a summary of the details we know about Alexa Fluor 488 (not all properties may be available for all fluorophores):** \- The primary laser line for excitation \- Commonly used detection filters \- Excitation Max \- Emission Max \- Extinction Coefficient \- Quantum Yield \- Molecular Weight \- Primary antibodies conjugated to the dye in FluoroFinder's database \- Secondary antibodies for conjugation in FluoroFinder's database \- Available conjugation kits \- Services involving the use of the dye **Beneath this header, you will find a short description of the dye:** ![](https://help.fluorofinder.com/hs-fs/hubfs/image-png-Jul-24-2025-03-26-32-6326-PM.png?width=688&height=85&name=image-png-Jul-24-2025-03-26-32-6326-PM.png) **And subsequently, a Spectra Viewer displaying the Excitation and Emission profile of the** **dye: ![](https://help.fluorofinder.com/hs-fs/hubfs/image-png-Jul-24-2025-03-27-12-7761-PM.png?width=688&height=189&name=image-png-Jul-24-2025-03-27-12-7761-PM.png)** **If the dye has homologous dyes (with highly similar excitation AND emission profiles)** they will be listed as "Alternative Dyes" to your chosen dye.  Clicking the checkbox  ![](https://help.fluorofinder.com/hs-fs/hubfs/image-png-Jul-24-2025-03-28-29-2455-PM.png?width=19&height=22&name=image-png-Jul-24-2025-03-28-29-2455-PM.png)next to an "Alternative Dye" will cause it to be shown as an overlay on the spectra viewer.  An example of this functionality, overlaying the alternative dye "STAR488" on our chosen "Alexa Fluor 488" is shown below ![](https://help.fluorofinder.com/hs-fs/hubfs/image-png-Jul-24-2025-03-29-45-2585-PM.png?width=688&height=266&name=image-png-Jul-24-2025-03-29-45-2585-PM.png) **If the fluorophore has other fluorophores with similar emission profiles (but potentially different excitation profiles),** those dyes will be listed as "Dyes similar to \" below the spectra viewer.  Clicking the checkbox ![](https://help.fluorofinder.com/hs-fs/hubfs/image-png-Jul-24-2025-03-28-29-2455-PM.png?width=19&height=22&name=image-png-Jul-24-2025-03-28-29-2455-PM.png) next to a "Dye similar to \ based on emission" will display that dye's excitation and emission profile over that of your chosen dye.  An example of this functionality, overlaying the "Dye similar to Alexa Fluor 488 based on emission" "Brilliant Violet 510" is shown below: ![](https://help.fluorofinder.com/hs-fs/hubfs/image-png-Jul-24-2025-03-34-02-5445-PM.png?width=688&height=362&name=image-png-Jul-24-2025-03-34-02-5445-PM.png) **Finally, at the bottom of the page, popular antibodies conjugated to your chosen fluorophore will be shown: ![](https://help.fluorofinder.com/hs-fs/hubfs/image-png-Jul-24-2025-03-36-44-9597-PM.png?width=1758&height=352&name=image-png-Jul-24-2025-03-36-44-9597-PM.png)** - [Getting Started](https://help.fluorofinder.com/getting-started?hsLang=en) - [Flow Cytometry Panel Builder Help Files](https://help.fluorofinder.com/flow-cytometry-panel-builder-help-files?hsLang=en#main-content) - [Panel Builder Guides](https://help.fluorofinder.com/flow-cytometry-panel-builder-help-files?hsLang=en#panel-builder-guides) - [How To Guides](https://help.fluorofinder.com/flow-cytometry-panel-builder-help-files?hsLang=en#how-to-guides) - [Interpreting Data](https://help.fluorofinder.com/flow-cytometry-panel-builder-help-files?hsLang=en#interpreting-data) - [Product Search Help Files](https://help.fluorofinder.com/product-search-help-files?hsLang=en) - [Dye Directory Help Files](https://help.fluorofinder.com/dye-directory-help-files?hsLang=en) - [Cell Types Tool Help Files](https://help.fluorofinder.com/cell-types-tool-help-files?hsLang=en) - [Inventory Help Files](https://help.fluorofinder.com/inventory-help-files?hsLang=en) - [Training Help Files](https://help.fluorofinder.com/training-help-files?hsLang=en) - [Groups and Sharing](https://help.fluorofinder.com/groups-and-sharing?hsLang=en) - [Advanced tips and tricks](https://help.fluorofinder.com/advanced-tips-and-tricks?hsLang=en) - [Trouble Shooting](https://help.fluorofinder.com/trouble-shooting?hsLang=en) - Home - Products - Pricing - Blog - Company # FluoroFinder fluorofinder.com Help Center Copyright © 2026, FluoroFinder