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HM1-43 is a fixable, activity-dependent fluorescent nerve terminal probe.

Product Attributes

Cellular localization


For live or fixed cells

For live/intact cells

Assay type/options

Real-time imaging

Fixation options

Fix after staining (formaldehyde), Permeabilize after staining


480/598 nm (in membranes)

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.
Catalog #
1 mg
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Product Description

HM1-43 is a fixable, activity-dependent fluorescent nerve terminal probe.

  • Functions similarly to SynaptoGreen™ (70020), but with the additional property of being fixable
  • Useful for synapse studies where subsequent fluorescent immunochemistry is desired
  • HM1-43 and FM®1-43 have identical excitation and emission wavelengths
  • λExEm (in membranes) = 480/598 nm

FM is a registered trademark of Thermo Fisher Scientific.

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