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

BDP® TR DBCO

A dye with a dibenzocyclooctyne substituting group for the ROX channel.

Cyanine5 tetrazine

Cyanine5 is a universal red emitting dye with a very high extinction coefficient, and good quantum yield. This tetrazine derivative reacts very quickly with trans-cyclooctenes and cyclopropenes with the formation of stable conjugates.

BDP® 630/650 lipid stain

Far-red fluorescent dye BDP 630/650 for staining of lipids and and other lipophilic compounds.

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.