The StarBright UltraViolet 510, StarBright UltraViolet 665, and StarBright UltraViolet 795 Dyes Offer Exceptional Brightness with Narrow Excitation and Emission Profiles to Support Multiplex Panels

Bio-Rad Laboratories, Inc. (NYSE: BIO and BIOb), a global leader of life science research and clinical diagnostic products, today introduced three StarBright™ Dyes designed for use with a 355 nanometer UV laser in flow cytometry applications. StarBright UltraViolet 510, 665, and 795 Dyes offer exceptional brightness with narrow excitation and emission profiles for precise resolution, expanding Bio-Rad’s range to provide greater flexibility in multicolor flow cytometry panels.

Bio-Rad’s line of StarBright Dyes offers researchers unique fluorescent nanoparticles conjugated to highly validated flow antibodies, which are compatible with most experimental protocols and flow cytometers, including Bio-Rad’s ZE5 Cell Analyzer and S3e Cell Sorter. The dyes are resistant to photobleaching and are highly stable with no loss of signal in fixation, and minimal lot-to-lot variation helps to ensure consistent staining and deliver reliable results.

“We are proud to add three new dyes to Bio-Rad’s StarBright UltraViolet portfolio, following its launch last year, and are now better positioned to support researchers with their flow cytometry workflows by providing a range of high-performance dyes excitable by the 355 nanometer UV laser to existing alternatives,” said Mike Blundell, PhD, Bio-Rad Product Manager, Flow Cytometry, Life Science Group. “The unrivaled brightness of the dyes enables enhanced resolution of low-density antigens and rare populations while maintaining consistent and reproducible staining without the need for special buffers.”

Visit for more information about the StarBright UltraViolet 510, StarBright UltraViolet 665, and StarBright UltraViolet 795 Dyes.

About Bio-Rad

Bio-Rad Laboratories, Inc. (NYSE: BIO and BIOb) is a global leader in developing, manufacturing, and marketing a broad range of innovative products for the life science research and clinical diagnostic markets. With a focus on quality and customer service for 70 years, our products advance the discovery process and improve healthcare. Our customers are university and research institutions, hospitals, public health and commercial laboratories, biotechnology and pharmaceutical companies, as well as applied laboratories that include food safety and environmental quality. Founded in 1952, Bio-Rad is based in Hercules, California, and has a global network of operations with approximately 7,900 employees worldwide. Bio-Rad had revenues of $2.9 billion in 2021. For more information, visit