StarBright UltraViolet 665 anti-mouse CD19 Antibody, CD19, 6D5

Pricing & Availability

Clone: 6D5 (See other available formats)
Regulatory Status: RUO
Other Names: B4
Isotype: Rat IgG2a, κ
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Product Citations: publications

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115548

30 µg

105€

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115550

150 μg

234€

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This StarBright conjugate is available for purchase as part of a multicolor flow cytometry panel. To order, add compatible products to your shopping cart, or use our Panel Selector tool to build your ideal panel. For ordering assistance or to request a sample, contact your local field representative.

This product is also available for direct purchase within a StarBright Basic Panel, which combines a minimal set of pre-selected compatible reagents.

Description

CD19 is a 95 kD glycoprotein also known as B4. It is a member of the Ig superfamily, expressed on all pro-B to mature B cells (during development) and follicular dendritic cells. Plasma cells do not express CD19. CD19, in association with CD21 and CD81, forms a molecular complex integral to B cell activation.

Product Details

Technical data sheet

Product Details

Verified Reactivity: Mouse
Antibody Type: Monoclonal
Host Species: Rat
Immunogen: Mouse CD19-expressing K562 human erythroleukemia cells
Formulation: Phosphate-buffered saline, containing 0.09% sodium azide, 0.05% Tween 20, 0.1% PEG 3350, 0.1% Pluronic F68, and 1% BSA (origin USA)
Preparation: The antibody was purified by affinity chromatography and conjugated with StarBright UltraViolet 665 under optimal conditions.
Concentration: 0.6 mg/mL (the concentration relates to the dye component of the conjugate)
Storage & Handling: The antibody solution should be stored undiluted between 2°C and 8°C, and protected from prolonged exposure to light. Do not freeze.
Application: FC - Quality tested
Recommended Usage: Each lot of this antibody is quality control tested by immunofluorescent staining with flow cytometric analysis. For flow cytometric staining, the suggested use of this reagent is ≤ 0.5 µg per million cells in 100 µL volume. It is recommended that the reagent be titrated for optimal performance for each application.

* StarBright UltraViolet 665 has a maximum excitation of 340 nm and a maximum emission of 669 nm.

StarBright dyes are powered by Bio-Rad®. STARBRIGHT is a trademark of Bio-Rad Laboratories, Inc.
Excitation Laser: Ultraviolet Laser (355 nm)
Application Notes: Additional reported applications (for the relevant formats) include: immunofluorescence⁷.

Antigen Details

Structure: Ig superfamily, associates with CD21 and CD81, 95 kD
Distribution: Pro-B cells to mature B cells (during development), follicular dendritic cells
Function: Modulates B cell activation and differentiation
Ligand/Receptor: CD21, CD81, Leu-13
Cell Type: B cells, Dendritic cells
Biology Area: Costimulatory Molecules, Immunology
Molecular Family: CD Molecules
Antigen References: 1. Fearon DT. 1993. Curr. Opin. Immunol. 5:341.
2. Krop I, et al. 1996. Eur. J. Immunol. 26:238.
3. Krop I, et al. 1996. J. Immunol. 157:48.
4. Tedder TF, et al. 1994. Immunol. Today 15:437.
Gene ID: 12478 View all products for this Gene ID
UniProt: View information about CD19 on UniProt.org

Documentation

Reviews

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Related Protocols

Cell Surface Flow Cytometry Staining Protocol

Related Products

Description	Clone	Applications

Related Pages & Pathways

Pathways

Related FAQs

What is a “StarBright panel”?: A StarBright panel is a multiplex panel that includes at least one StarBright conjugate.
Will my StarBright panel be provided as a cocktail?: StarBright products purchased as part of a panel or StarBright Basic Panel will be provided in individual vials. To order premade cocktails, please contact our Custom Solutions Team.
Are StarBright GMP/ASR products available?: StarBright ASR and GMP products are coming soon.
Are StarBright custom products available?: Yes, please contact our Custom Solutions Team.
Will StarBright isotype controls be offered?: We are not planning to offer StarBright isotype controls at this time. Fluorescence Minus One (FMO) controls should be used to define gating boundaries.
What amount of a StarBright conjugate should I use?: Antibody conjugates should be titrated for optimal performance in each application. To directly compare performance with a traditional or polymer-conjugated antibody, we recommend using the same volume of each product for analysis. Due to differences in the quantification of product mass, StarBright Dyes are prepared in equivalent volumes.
Why shouldn’t I compare the mass (μg) of a StarBright conjugate to a traditional or polymer conjugate?: For StarBright conjugates, the reported mass refers to the mass of the dye component. For traditional conjugates, the reported mass refers to the mass of the antibody component. This is because traditional conjugates have multiple dye molecules attached to one antibody, while StarBright conjugates have multiple antibodies attached to a single StarBright Dye.

Other Formats

View All CD19 Reagents Request Custom Conjugation

Description	Clone	Applications
APC anti-mouse CD19	6D5	FC
Biotin anti-mouse CD19	6D5	FC
FITC anti-mouse CD19	6D5	FC
PE anti-mouse CD19	6D5	FC
PE/Cyanine5 anti-mouse CD19	6D5	FC
Purified anti-mouse CD19	6D5	FC,CyTOF®,IHC-F
PE/Cyanine7 anti-mouse CD19	6D5	FC
PE/Dazzle™ 594 anti-mouse CD19	6D5	FC
Brilliant Violet 711™ anti-mouse CD19	6D5	FC
APC/Fire™ 750 anti-mouse CD19	6D5	FC
TotalSeq™-A0093 anti-mouse CD19	6D5	PG
Brilliant Violet 750™ anti-mouse CD19	6D5	FC
TotalSeq™-B0093 anti-mouse CD19	6D5	PG
Spark NIR™ 685 anti-mouse CD19	6D5	FC
Spark Blue™ 550 anti-mouse CD19	6D5	FC
TotalSeq™-C0093 anti-mouse CD19	6D5	PG
Ultra-LEAF™ Purified anti-mouse CD19	6D5	FC,CyTOF®,IHC-F
PE/Fire™ 640 anti-mouse CD19 Antibody	6D5	FC
Pacific Blue™ anti-mouse CD19	6D5	FC
Alexa Fluor® 700 anti-mouse CD19	6D5	FC
Alexa Fluor® 647 anti-mouse CD19	6D5	FC,IHC-F
Alexa Fluor® 488 anti-mouse CD19	6D5	FC
APC/Cyanine7 anti-mouse CD19	6D5	FC
PerCP anti-mouse CD19	6D5	FC
PerCP/Cyanine5.5 anti-mouse CD19	6D5	FC
Alexa Fluor® 594 anti-mouse CD19	6D5	IHC-F,FC
Brilliant Violet 421™ anti-mouse CD19	6D5	FC,IHC-F
Brilliant Violet 570™ anti-mouse CD19	6D5	FC
Brilliant Violet 650™ anti-mouse CD19	6D5	FC
Brilliant Violet 785™ anti-mouse CD19	6D5	FC
Brilliant Violet 605™ anti-mouse CD19	6D5	FC
Brilliant Violet 510™ anti-mouse CD19	6D5	FC
Purified anti-mouse CD19 (Maxpar® Ready)	6D5	FC,CyTOF®
Spark YG™ 581 anti-mouse CD19	6D5	FC
APC/Fire™ 810 anti-mouse CD19	6D5	FC
Spark YG™ 570 anti-mouse CD19	6D5	IHC-F
Spark Blue™ 574 anti-mouse CD19 Antibody	6D5	FC
Spark Blue™ 515 anti-mouse CD19	6D5	FC
Spark UV™ 387 anti-mouse CD19	6D5	FC
Spark Red™ 718 anti-mouse CD19 (Flexi-Fluor™)	6D5	FC
Spark PLUS UV395™ anti-mouse CD19	6D5	FC
Spark Violet™ 538 anti-mouse CD19	6D5	FC
PerCP/Fire™ 780 anti-mouse CD19 Antibody	6D5	FC
PerCP/Fire™ 806 anti-mouse CD19 Antibody	6D5	FC
Spark YG™ 593 anti-mouse CD19 (Flexi-Fluor™) Antibody	6D5	FC
StarBright UltraViolet 665 anti-mouse CD19	6D5	FC

Certificate of Analysis

Go To Top Version: 1 Revision Date: 02.26.2026

For Research Use Only. Not for diagnostic or therapeutic use.

This product is supplied subject to the terms and conditions, including the limited license, located at www.biolegend.com/terms) ("Terms") and may be used only as provided in the Terms. Without limiting the foregoing, BioLegend products may not be used for any Commercial Purpose as defined in the Terms, resold in any form, used in manufacturing, or reverse engineered, sequenced, or otherwise studied or used to learn its design or composition without express written approval of BioLegend. Regardless of the information given in this document, user is solely responsible for determining any license requirements necessary for user’s intended use and assumes all risk and liability arising from use of the product. BioLegend is not responsible for patent infringement or any other risks or liabilities whatsoever resulting from the use of its products.

BioLegend, the BioLegend logo, and all other trademarks are property of BioLegend, Inc. or their respective owners, and all rights are reserved.

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This data display is provided for general comparisons between formats.
Your actual data may vary due to variations in samples, target cells, instruments and their settings, staining conditions, and other factors.
If you need assistance with selecting the best format contact our expert technical support team.