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cFluor<sup>®</sup> B515 Anti-Human IgM (CH2)

cFluor® B515 Anti-Human IgM (CH2)

SKU R7-20288
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The antibody CH2 reacts with Fc fragment of human IgM. IgM is the first immunoglobulin made by B cells in the immune response. Surface IgM is expressed on immature and mature B cells, while IgM heavy (μ) chain is expressed intracellularly in pre-B cells. The antibody was conjugated to a fluorophore and purified by chromatography.


Clone:                  CH2

Reactivity:          Human

Format:          cFluor® B515*

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. Brinkmann V, Heusser CH. 1993. Cell Immunol. 152(2):323-32.
  2. Franklin EC: 1975. Acta Endocrinol Suppl (Copenh). 194:77-95.
  3. Ahmed R et al. 2019. Cell. 177(6):1583-1599.

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

*cFluor® B515 is equivalent to CF®488A manufactured and provided by Biotium, Inc. under an Agreement between Biotium and Cytek (LICENSEE). The manufacture, use, sale, offer for sale, or import of the product is covered by one or more of the patents or pending applications owned or licensed by Biotium. The purchase of this product includes a limited, non-transferable immunity from suit under the foregoing patent claims for using only this amount of product for the purchaser’s own internal research. No right under any other patent claim, no right to perform any patented method, and no right to perform commercial services of any kind, including without limitation reporting the results of purchaser's activities for a fee or other commercial consideration, is conveyed expressly, by implication, or by estoppel.

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