SynaptoRedTM C2

Tocris Bioscience | Catalog # 5118

Fluorescent dye. Used for: synaptic vesicles staining. Application: fluorescence microscopy
Tocris Bioscience

Key Product Details

Description

Fluorescent dye. Used for: synaptic vesicles staining. Application: fluorescence microscopy

Alternative Names

FM4-64
View all Neurone and Astrocyte Probes »

Product Description

Key information: SynaptoRed™ C2 is a fluorescent dye for synaptic vesicles staining.

Used for: Suitable for monitoring synaptic activity at the synapse or neuromuscular junctions.

Application: fluorescence microscopy.

Properties and Photophysical Data: excitation and emission maxima (λ) are 510 nm and 750 nm, respectively.

Licensing Information

SynaptoRed is a trademark of Biotium, Inc.

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Product Specifications for SynaptoRedTM C2

Molecular Weight

607.51

Formula

C30H45Br2N3

Storage

Store at -20°C

Purity

≥95% (HPLC)

Chemical Name

4-[6-[4-(Diethylamino)phenyl]-1,3,5-hexatrien-1-yl]-1-[3-(triethylammonio)propyl]pyridinium dibromide

CAS Number

162112-35-8

PubChem ID

2733635

InChI Key

AFVSZGYRRUMOFH-UHFFFAOYSA-L

SMILES

CCN(CC)C(C=C2)=CC=C2\C=C/C=C/C=C\C1=CC=[N+](CCC[N+](CC)(CC)CC)C=C1.[Br-].[Br-]

The technical data provided above is for guidance only. For batch specific data refer to the Certificate of Analysis.

Solubility

Solvent Max Conc. mg/mL Max Conc. mM
Solubility
water 10 17

Preparing Stock Solutions for SynaptoRedTM C2

The following data is based on the product molecular weight 607.51.

Batch specific molecular weights may vary from batch to batch due to the degree of hydration, which all affect the solvent volumes required to prepare stock solutions.

Select a batch to recalculate based on the batch molecular weight:

Concentration / Solvent Volume / Mass 1 mg 5 mg 10 mg
0.17 mM 9.68 mL 48.41 mL 96.83 mL
0.85 mM 1.94 mL 9.68 mL 19.37 mL
1.7 mM 0.97 mL 4.84 mL 9.68 mL
8.5 mM 0.19 mL 0.97 mL 1.94 mL

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Background References

References are publications that support the biological activity of the product. See our Citations tab to view 9 publications citing the usage of this product.

Product Documents for SynaptoRedTM C2

Certificate of Analysis

To download a Certificate of Analysis, please enter a lot or batch number in the search box below.

Product Specific Notices for SynaptoRedTM C2

For research use only

Citations for SynaptoRedTM C2

Customer Reviews for SynaptoRedTM C2 (3)

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  • Exocytosis
    Name: Krish K
    Species: Rat
    Assay Type: In Vitro
    Cell Line/Tissue: Neurons
    Verified Customer | Posted 09/11/2025
    10 micromolar dye incubated in high KCL buffer for 5 minutes.
    Study synaptic vesicle release
    SynaptoRedTM C2 5118
  • synaptic vesicle dye
    Name: Karthik Krishnamurthy
    Species: Rat
    Assay Type: In Vitro
    Cell Line/Tissue: cortical neurons
    Verified Customer | Posted 08/03/2021
    Cultured cortical neurons labeled with 5 micromolar SynaptoRed for 5 minutes upon KCl depolarization and washing with aCSF.
    SynaptoRedTM C2 5118
  • synaptic vesicle release
    Name: Anonymous
    Species: Rat
    Assay Type: In Vitro
    Cell Line/Tissue: motor neurons
    Verified Customer | Posted 12/12/2017
    10 micromolar of synaptored was used
    for synaptic vesicle recycling studies in cortical and motor neurons
    SynaptoRedTM C2 5118

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