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Invitrogen™ eBioscience™ 123count eBeads

Intended for use in absolute counting of cells or other particles by flow cytometry. 123count eBeads are 7μm microparticles containing encapsulated dyes compatible with blue (488nm) and violet (405nm) excitation sources and emitting fluorescence between approximately 500nm and 750nm.

Manufacturer:  Invitrogen™ LS01123442

Catalog No. 501129030


Contains Sodium azide



  • Supplied at a known concentration in 0.05% Tween-20 with 2 mM sodium azide
  • 10mL aqueous suspension
  • Collecting carefully suspended and measured quantities of cell:bead mixtures on a flow cytometer makes the ratiometric enumeration of cells possible


Flow Cytometric Analysis
0.05% Tween-20 and 2 mM sodium azide
100 tests
2° to 8°C protected from light. Do not freeze.

For Research Use Only