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Oxazole Yellow

Oxazole Yellow (Ex-Max 491 nm/Em-Max 506 nm)

Oxazole Yellow (YO-PRO-1) is a cell-impermeant, fluorogenic intercalating nucleic acid stain. Oxazole Yellow has an excitation peak at 491 nm and an emission peak at 506 nm. It is commonly used as a dead and apoptotic cell stain in the following applications: Fluorescence Microscopy and Flow Cytometry.

Excitation & emission spectra

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Key facts

Excitation maximum
491 nm
Emission maximum
506 nm
Optimal laser line
488
Optimal filter
515/30
Commercial antibodies
1 from 1 supplier

Oxazole Yellow has an excitation maximum at 491 nm and an emission maximum at 506 nm, a Stokes shift of 15 nm. It is optimally excited by the 488 laser line.

Frequently asked questions

What is Oxazole Yellow?
Oxazole Yellow (YO-PRO-1) is a cell-impermeant, fluorogenic intercalating nucleic acid stain. Oxazole Yellow has an excitation peak at 491 nm and an emission peak at 506 nm. It is commonly used as a dead and apoptotic cell stain in the following applications: Fluorescence Microscopy and Flow Cytometry.
What laser excites Oxazole Yellow?
Oxazole Yellow is optimally excited by the 488 laser line. Its excitation maximum is 491 nm.
What filter should I use to detect Oxazole Yellow?
A 515/30 filter captures the peak of the Oxazole Yellow emission near 506 nm with minimal spillover.
How many antibodies are available conjugated to Oxazole Yellow?
FluoroFinder tracks 1 commercially available Oxazole Yellow conjugates, searchable by target, clone, host and application.