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Amethyst Orange

Amethyst Orange (Ex-Max 390 nm/Em-Max 535 nm)

Amethyst Orange from Bio-Rad has an excitation peak at 390 nm and an emission peak at 535 nm. It can be excited by the 405 nm laser on a flow cytometer and is spectrally most similar to Pacific Orange. However, StarBright Violet 515 and StarBright Violet 570 both offer brighter alternatives for that emission range in flow cytometry.

Excitation & emission spectra

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Key facts

Excitation maximum
390 nm
Emission maximum
535 nm
Optimal laser line
405
Optimal filter
525/50
Commercial conjugates
3 from 1 supplier

Amethyst Orange has an excitation maximum at 390 nm and an emission maximum at 535 nm, a Stokes shift of 145 nm. It is optimally excited by the 405 laser line.

Frequently asked questions

What is Amethyst Orange?
Amethyst Orange from Bio-Rad has an excitation peak at 390 nm and an emission peak at 535 nm. It can be excited by the 405 nm laser on a flow cytometer and is spectrally most similar to Pacific Orange. However, StarBright Violet 515 and StarBright Violet 570 both offer brighter alternatives for that emission range in flow cytometry.
What laser excites Amethyst Orange?
Amethyst Orange is optimally excited by the 405 laser line. Its excitation maximum is 390 nm.
What filter should I use to detect Amethyst Orange?
A 525/50 filter captures the peak of the Amethyst Orange emission near 535 nm with minimal spillover.
How many antibodies are available conjugated to Amethyst Orange?
FluoroFinder tracks 3 commercially available Amethyst Orange conjugates, searchable by target, clone, host and application.