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SynaptoRed™ C2M (equivalent to FM®5-95)

SynaptoRed™ C2M is a red fluorescent probe used to follow synaptic vesicles.

Product Attributes

Cellular localization


For live or fixed cells

For live/intact cells

Assay type/options

Real-time imaging




510/750 nm (see product description)

Note: Due to operating restrictions related to our COVID-19 response, primary antibody conjugates of R-PE, APC, PerCP, HRP, or AP are temporarily unavailable. All other antibody options are still available. We apologize for the inconvenience. Please see our easy-to-use Mix-n-Stain™ Antibody Labeling Kits for labeling antibodies with R-PE, APC, tandem dyes, and enzymes.
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5 mg
5 x 1 mg
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Product Description

SynaptoRed™ C2M (also known as FM®5-95), is a red fluorescent probe used to follow synaptic vesicles. SynaptoRed™ C2M is slightly more water soluble than SynaptoRed™ C2 (equivalent to FM®4-64).

  • λExEm (membranes) = ~510/750 nm*
  • Dark purple solid soluble in water
  • MW: 565.43

* Excitation/emission settings of 515/640 nm have been used for detection of yeast vacuole staining with SynaptoRed™ C2 (FM®4-64), and should be applicable to SynaptoRed™ C2M. FM is a registered trademark of Thermo Fisher Scientific.


1. Science 297, 1525 (2002).
2. Cell 107, 605 (2001).


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