FM4-64
- CAS No.
- 162112-35-8
- Chemical Name:
- FM4-64
- Synonyms
- FMreg;FM4-64;FM®NeurotransRed;Neurodye GH4-64;ViVidFluor Neuro Red;SynaptoRed? C2;4-64 is TM of Molecular Probes;SynaptoRed? Reagent;FM4-64 IS TM OF MOLECULAR PROBES
- CBNumber:
- CB6502122
- Molecular Formula:
- C30H45BrN3+
- Molecular Weight:
- 527.61
- MDL Number:
- MFCD00467819
- MOL File:
- 162112-35-8.mol
- MSDS File:
- SDS
- TDS File:
- TDS
| Melting point | >200℃ |
|---|---|
| storage temp. | −20°C |
| solubility | DMSO: soluble10mg/mL |
| form | powder |
| color | deep purple |
| Appearance | dark powder |
| Water Solubility |
water: 10mg/mL DMSO: soluble methanol: soluble |
| λmax | 505nm |
| Biological Applications | Detecting FRET in cells; monitoring fast neuronal activity and signaling; quantifying plasma membrane expression; cytotoxicity assay; membrane fusion assay; probe for endocytosis; probe for exocytosis |
| Major Application |
diagnostic assay manufacturing hematology histology |
| InChIKey | HMPYRCUBZVFZMV-UHFFFAOYSA-M |
| SMILES | N(C1C=CC(C=CC=CC=CC2=CC=[N+](CCC[N+](CC)(CC)CC)C=C2)=CC=1)(CC)CC.[Br-] |
| UNSPSC Code | 12171500 |
| NACRES | NA.47 |
SAFETY
Risk and Safety Statements
| PPE | Eyeshields, Gloves, type N95 (US) |
|---|---|
| Safety Statements | 22-24/25 |
| WGK Germany | 3 |
| Storage Class | 11 - Combustible Solids |
FM4-64 price More Price(11)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | S6689 | SynaptoRed? C2 ≥95% (HPLC), solid | 162112-35-8 | 5mg | $837 | 2026-04-30 | Buy |
| ChemScene | CS-0027947 | FM4-64 99.94% | 162112-35-8 | 1mg | $357 | 2026-06-04 | Buy |
| ChemScene | CS-0027947 | FM4-64 99.94% | 162112-35-8 | 5mg | $791 | 2026-06-04 | Buy |
| ChemScene | CS-0027947 | FM4-64 99.94% | 162112-35-8 | 10mg | $1267 | 2026-06-04 | Buy |
| ApexBio Technology | B7754 | SynaptoRedTM C2 | 162112-35-8 | 1mg | $464 | 2026-05-06 | Buy |
FM4-64 Chemical Properties, Uses, Production
Description
SynaptoProbe® Red is an analog of FM®4-64, a widely used red fluorescent dye for studying synaptic activity in the synapses or neuromuscular junctions by staining synaptic vesicles.
This water-soluble and non-toxic to cells dye is nonfluorescent in an aqueous medium but becomes highly fluorescent after embedding into the outer leaflet of the cell membrane. When a neuron actively releases neurotransmitters, the dye becomes internalized within the recycled synaptic vesicles and stains the nerve terminals.
SynaptoProbe® Red can be used to visualize synaptic vesicles and their exocytosis and endocytosis in living neurons, identify actively firing neurons, and investigate the mechanisms of activity-dependent vesicle cycling. It is also helpful for the visualization of shear stress-induced plasma membrane damage in fibroblasts.
Uses
Water Soluble Fluorescent RH probe
Uses
N-(3-Triethylammoniopropyl)-4-(6-(4-(diethylamino)phenyl) hexatrienyl)pyridinium dibromide is a styryl dyes or a fluorescent dye. Dyes and metabolites.
Biological Activity
Fluorescent dye suitable for monitoring synaptic activity at neuromuscular junctions.
storage
Store at -20°C
Abs/Em Maxima
536/736 nm
FM4-64 Preparation Products And Raw materials
Raw materials
Preparation Products
FM4-64 Suppliers
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Shanghai Annengjian Biomedical Technology Co., LTD | 021-68781987 13818305065 | sales@energybiopharma.com | China | 788 | 58 |
| Shanghai Aladdin Bio-Chem Technology Co.,LTD | 400-6206333 13167063860 | anhua.mao@aladdin-e.com | China | 29985 | 65 |
| Shanghai Macklin Biochemical Co.,Ltd. | 15221275939 15221275939 | shenlinxing@macklin.cn | China | 15775 | 55 |
| Shanghai YuanYe Biotechnology Co., Ltd. | 15026964105 | 2881489226@qq.com | China | 89667 | 60 |
| Chengdu Huachun Technology Co., Ltd | 400-1166-196 15982826727 | cdhxsj@163.com | China | 14571 | 60 |
| Shanghai Chaolan Chemical Technology Center | QQ:65489617 13301690235 | Sales@ATKchemical.com | China | 9699 | 58 |
| Shanghai Zhen Li Biological Technology Co., Ltd | 021-16621358918; 18516310516;16621358918;13045646768 | zhenlipharma888@163.com | China | 19060 | 58 |
| Xi'an Confluore Biological Technology Co., Ltd. | +86-156-80926068 +86-15680926068 | 1924344760@qq.com | China | 4229 | 58 |
| TargetMol Chemicals Inc. | +1-781-999-5354; +1-00000000000 | marketing@targetmol.com | United States | 32431 | 58 |
| ShangHai ChuanQian Chemcial Technique Centre | 15869524721 | 3525679403@qq.com | China | 4565 | 58 |
View Latest Price from FM4-64 manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
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2026-07-16 | FM4-64
162112-35-8
|
$273.00-696.00 | 99.99% | 10g | TargetMol Chemicals Inc. | ||
![]() |
2025-06-07 | NeurotransRed
162112-35-8
|
100mg | >95.00% | 100mg | Xian confluore Biological Technology Co., Ltd. |
-

- FM4-64
162112-35-8
- $273.00-696.00
- 99.99%
- TargetMol Chemicals Inc.
-

- NeurotransRed
162112-35-8
- $0.00
- >95.00%
- Xian confluore Biological Technology Co., Ltd.




