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cFluor<sup>®</sup> BYG750 Anti-Human CD19 (HIB19)

cFluor® BYG750 Anti-Human CD19 (HIB19)

SKU R7-20324
Regular price


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The HIB19 monoclonal antibody binds to human CD19, a 95-kDa type I transmembrane glycoprotein in the immunoglobulin superfamily. CD19 forms a signal transduction complex with the complement receptor 2 (CD21), a tetraspanin membrane protein, TAPA-1 (CD81), and Lue 13 to function as a dominant signaling component on the surface of B cells1,2. It is expressed in all phases of B cell development, maturation and differentiation except at the terminal stage of differentiation, lost in plasma cells3. It is also present on follicular dendritic cells and absent on T cells. The antibody was conjugated to a fluorophore and purified by chromatography.


Clone:              HIB19

Reactivity:          Human

Format:        cFluor® BYG7501

Isotype:               Mouse IgG1, κ

Tested Dilution:  5 μL / test

Application:        Flow Cytometry

Storage:               2-8°C and protected from Light. Do not freeze

Formulation:       Phosphate-buffered solution, pH 7.2, containing 0.09% sodium azide and 0.2% BSA (Origin USA)

Data Sheets:      TDS SDS



Each lot of this antibody is quality control tested using flow cytometric analysis. For flow cytometric staining, the suggested use of this reagent is 5 µL per 1 million cells in a staining volume of 100 µL. If whole blood is analyzed, then use 5 µL per 100 µL. It is recommended that users titrate the antibody to obtain the optimal result for their specific application.

Please briefly centrifuge the reagent vial before use.

Use appropriate personal protective equipment per the product safety data sheet when using this product.  


  1. Wang K, et al. 2012. Exp Hematol Oncol. 10.1186/2162-3619-1-36
  2. Bradbury LE, et al. 1993. J Immunol. 151(6):2915-2927
  3. Nadler LM, et al. 1983. J Immunol. 131(1):244-250

These products are for research use only. Not intended for use in diagnostic procedures.

1cFluor® BYG750 is a tandem dye made with R-PE. Caution – Tandem dyes may show changes in their emission spectra with prolonged exposure to light or fixatives.

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