SYNAPTOREDTM C2 (ALSO KNOWN AS

广泛使用的红色荧光染料，用于染色突触和神经肌肉接头的突触泡来研究突触活动。

A widely used green fluorescent dye for following synaptic activity by staining synaptic vesicles at the synapse or neuromuscular junctions. When used in combination with the red fluorescent dye SynaptoRed™ (70021), synapses or neuromuscular junctions can be imaged independently in two colors. Research results from the Tsien and Kay labs showed that brain slices can be stained with SynaptoGreen™ when SR101 (Sulforhodamine 101, 80101) or ADVASEP-7 (70029) is used to reduce the background staining. Biotium offers several Nerve Terminal Staining Kits for staining brain slices. Also see AM1-43 (70024), which is similar to SynaptoGreen™, but with a formaldehyde-fixable amine group.

SynaptoGreen™ also can be used to stain bacteria (gram-positive or gram-negative) and yeast, although in yeast it rapidly internalizes to vacuolar membranes. See our Cellular Stains Table for more information on how our dyes stain various organisms.

• λ_Ex/λ_Em: 510/625 nm (in MeOH); 480/598 nm (in membranes)
• Red solid soluble in water
• C₃₀H₄₉Br₂N₃
• MW: 612

Nerve Terminal Dyes and Kits

Product	Catalog No.	Features
SynaptGreen™ Dyes (Ex/Em ~480/660 nm in membranes)	70020... 70053	View full list of SynaptoGreen™ Dyes
SynaptoRed Dyes™ (Ex/Em ~510/750 nm in membranes)	70021... 70050	View full list of SynaptoRed™ Dyes
Background Reducers
ADVASEP-7	70029	Sulfonated cyclodextrin that aids in removal of free dye during washes
SCAS	70037	Quenches extracellular fluorescences with fewer wash steps than ADVASEP-7
Sulforhodamine 101	80101	Red fluorescent dye that quenches extracellular fluorescence of SynaptoGreen™ dyes
Nerve Terminal Staining Kits
Nerve Terminal Staining Kit I	70030	Includes SynaptoGreen™ C4 and ADVASEP-7
Nerve Terminal Staining Kit II (A)	70031	Includes AM1-43 and ADVASEP-7
Nerve Terminal Staining Kit II (B)	70031-1	Includes AM1-43 and SCAS
Nerve Terminal Staining Kit III	70032	Includes SynaptoGreen™ C4 and Sulforhodamine 101
Nerve Terminal Staining Kit V	70034	Includes SynaptoRed™ C2 and ADVASEP-7

m is the number of carbons in the lipophilic tail and n is the number of double bonds linking the two aromatic rings in the dye.
**The positively-charged end of SynaptoRed C2M is a trimethylammonium group.
FM is a registered trademark of Thermo Fisher Scientific.