Spectraviewer image of Brilliant Ultra Violet 615 dye

Brilliant Ultra Violet™ dyes, including Brilliant Ultra Violet™ 615 (BUV615), are a polymer dye-based technology and compatible with both spectral flow cytometry, as well as traditional flow cytometry. The UV laser has unique channels far from heavily occupied detectors allowing for larger panels.

BUV615 is a tandem dye excited by the 355 nm UV laser and emits at 615 nm. This dye has a medium relative brightness and can be used for cell surface, intracellular, and nuclear staining. BUV615 may have some cross-laser excitation with the blue and yellow laser.

When using two or more Super Bright, Brilliant Violet, Brilliant Ultra Violet™, or other polymer dye- conjugated antibodies in a staining panel, we recommend that you use Super Bright Complete Staining Buffer (Cat. No. SB-4401-42) or Brilliant Stain Buffer (Cat. No. 00-4409-42) to minimize any non- specific polymer interactions.

BUV615 dye dashboard

Initial brightness

The UV laser-excitable BUV615 dye is optimized for use both cell surface and intracellular flow applications. Can be used for spectral flow cytometry applications. 

Photostability in buffer


595 LP
Laser line


Excitation max

Emission max


BUV615 dye products

We offer BUV615 dye conjugated to primary antibodies for use in flow cytometry.

Antibody conjugates

Brilliant Stain Buffer
Super Bright Staining Buffer

Experimental data using BUV615 dye products

Figure 1. Excitation and emission of Brilliant Ultra Violet™ 615 dye (BUV615).

Figure 2. Spectral signature of BUV615 dye. Data acquired on a 5-laser Cytek Aurora and normal human peripheral blood cells stained with clone SK7 (hCD3) conjugated to BUV615 dye (Cat. No. 366-0036-42) were used for analysis.

Dot plot of Ki-67 BUV615 vs CD45R (B220) FITC in unstimulated and stimulated cells

Figure 3. C57BL/6 mouse splenocytes were unstimulated (left) or stimulated for 48 hours with CD3e Monoclonal Antibody, Functional Grade (Cat. No. 16-0031-85) (right). Cells were then stained intracellularly, using the Foxp3/Transcription Factor Staining Buffer Set (Cat. No. 00-5523-00) and protocol, with CD45R (B220) Monoclonal Antibody, FITC (Cat. No. 11-0452-82) and 1.0 µg of Ki-67 Monoclonal Antibody, Brilliant Ultra Violet™ 615 dye (Cat. No. 366-5698-82). Viable cells in the lymphocyte gate were used for analysis, as determined by LIVE/DEAD Fixable Blue Dead Cell Stain Kit (Cat. No. L34962).

Dot plot of samples stained with IgG1 control vs CD3-FITC and CD8a-BUV615 vs CD3-FITC

Figure 4. Normal human peripheral blood cells were stained with CD3 Monoclonal Antibody, FITC (Cat. No. 11-0038-42) and Mouse IgG1 kappa Isotype Control, Brilliant Ultra Violet™ 615 dye (Cat. No. 366-4714-81) (left) or CD8a Monoclonal Antibody, Brilliant Ultra Violet™ 615 dye (Cat. No. 366-0088-42) (right). Viable cells in the lymphocyte gate were used for analysis, as determined by 7-AAD (Cat. No. 00-6993-50).

Not for resale. Super Bright Polymer Dyes are sold under license from Becton, Dickinson and Company.

Brilliant Ultra Violet™ and Brilliant Violet™ are trademarks or registered trademarks of Becton, Dickinson and Company or its affiliates, and is used under license.

For Research Use Only. Not for use in diagnostic procedures.