TO-TAP-1, green fluorescent nucleic acid stain

Cat. # Quantity Price Lead time
A3610 50 uL, 5 mM/DMSO $85 in stock
23610 200 uL, 5 mM/DMSO $320 in stock
Found better price? Let us know and we will propose the way forward!

TO-TAP-1 (Thiazole Orange Monomer, also known as TO-PRO®-1) is a green fluorescent carbocyanine monomeric dye. TO-TAP-1 is a cell-impermeant nucleic acid stain that is nonfluorescent in the absence of nucleic acids but exhibits a multiple fluorescence enhancement upon binding to dsDNA.

The bright fluorescence signal and low background make TO-TAP-1 ideal for staining nucleic acids on microarrays, as well as for nuclear and chromosome counterstaining in multicolor fluorescence labeling experiments. TO-TAP-1 is non-cytotoxic and may be used for long-term monitoring of cell viability and dead cell detection in culture.

Absorption and emission spectra of TO-TAP-1 (DNA–dye complex)

Absorption and emission spectra of TO-TAP-1 (DNA–dye complex)

Customers also purchased with this product

LumiTracker® Mito Red CMXRos

Сell-permeant, cationic, red-fluorescent dye for staining active mitochondria in living cells in a potential-dependent manner. The stain is compatible with aldehyde fixation.

SynaptoProbe Green

SynaptoProbe Green is an analog of FM®1-43, a widely used green fluorescent dye for staining synaptic vesicles and studying synaptic activity in the synapses or neuromuscular junctions.

Cyanine3 tetrazine

Tetrazine derivative of the fluorophore Cyanine3. Tetrazines react extremely quickly with strained alkenes (such as trans-cyclooctenes, cyclopropenes), and some strained alkynes.

General properties

Appearance: orange solution
Molecular weight: 645.39
CAS number: 157199-59-2
Molecular formula: C24H29I2N3S
IUPAC name: Quinolinium, 4-[(3-methyl-2(3H)-benzothiazolylidene)methyl]-1-[3-(trimethylammonio)propyl]-, diiodide
Quality control: NMR 1H and HPLC-MS (95+%)
Storage conditions: 24 months after receival at -20°C in the dark. Transportation: at room temperature for up to 3 weeks. Desiccate.
MSDS: Download
Product specifications

Spectral properties

Excitation/absorption maximum, nm: 513
Emission maximum, nm: 533
Your item has been added. View your cart or proceed to checkout
The count of items is incorrect.