# Cy3/Cy5/Cy7 multi-spectral beads?

**URL:** <https://forum.microlist.org/t/cy3-cy5-cy7-multi-spectral-beads/2597>\
**Category:** Uncategorized\
**Created:** [July 8, 2024, 12:34pm UTC](https://forum.microlist.org/t/cy3-cy5-cy7-multi-spectral-beads/2597 "2024-07-08T12:34:02Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Hazen\_Babcock](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.microlist.org/hazen_babcock/32/281_2.png) [@Hazen\_Babcock](https://forum.microlist.org/u/Hazen_Babcock)\
**Post date:** [July 8, 2024, 12:34pm UTC](https://forum.microlist.org/t/cy3-cy5-cy7-multi-spectral-beads/2597/1 "2024-07-08T12:34:02Z")

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I am hoping to find a vendor of multi-spectral beads that contain dyes that are similar to Cy3, Cy5 and Cy7. The excitation wavelengths are 560nm, 650nm and 750nm. Unfortunately the tetraspeck beads that I can find don’t go past the Cy5 wavelength. 100nm - 200nm diameter would be best.

Thank you,  
-Hazen

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**Author:** ![edelaserna](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.microlist.org/edelaserna/32/1190_2.png) [@edelaserna](https://forum.microlist.org/u/edelaserna)\
**Post date:** [May 9, 2025, 2:46pm UTC](https://forum.microlist.org/t/cy3-cy5-cy7-multi-spectral-beads/2597/2 "2025-05-09T14:46:45Z")

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Hi Hazen! Just curious if you ended up finding a working bead option. I would love to find a similar option. Thanks!

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**Author:** ![Hazen\_Babcock](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.microlist.org/hazen_babcock/32/281_2.png) [@Hazen\_Babcock](https://forum.microlist.org/u/Hazen_Babcock)\
**Post date:** [May 10, 2025, 10:53pm UTC](https://forum.microlist.org/t/cy3-cy5-cy7-multi-spectral-beads/2597/3 "2025-05-10T22:53:49Z")

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No, unfortunately. I was never able to find a good bead option for these 3 wavelengths.