BO-TAP-3, orange fluorescent nucleic acid stain
Cat. # | Quantity | Price | Lead time | Buy this product |
---|---|---|---|---|
A4910 | 50 uL, 5 mM/DMSO | $85 | in stock | |
24910 | 200 uL, 5 mM/DMSO | $319 | in stock |
BO-TAP-3 (also known as BO-PRO®-3) is a orange fluorescent carbocyanine monomeric dye. BO-TAP-3 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 BO-TAP-3 ideal for staining nucleic acids on microarrays, as well as for nuclear and chromosome counterstaining in multicolor fluorescence labeling experiments.
The dye is used to image cell nuclei and cytoplasm, label bacteria and sperms, perform nucleic acid detection and amplification, and as a temperature sensor.
Excitation and emission spectra of BO-TAP-3 (DNA–dye complex)

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Appearance: | purple solution |
Molecular weight: | 621.37 |
CAS number: | 173357-16-9 |
Molecular formula: | C22H29I2N3S |
IUPAC name: | 3-methyl-2-((e)-3-[1-[3-(trimethylammonio)propyl]-4(1h)-pyridinylidene]-1-propenyl)-1,3-benzothiazol-3-ium 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: | 564 (complex) |
Emission maximum, nm: | 600 (complex) |
