YO-TAP-3, red fluorescent nucleic acid stain
Cat. # | Quantity | Price | Lead time | Buy this product |
---|---|---|---|---|
A2710 | 50 uL, 5 mM/DMSO | $90 | in stock | |
22710 | 200 uL, 5 mM/DMSO | $350 | in stock |
YO-TAP-3 (Oxazole Red Monomer, also known as YO-PRO®-3) is a red fluorescent carbocyanine monomeric dye. YO-TAP-3 is a cell-impermeant nucleic acid stain that is nonfluorescent in the absence of nucleic acids but exhibits significant fluorescence enhancement upon binding to DNA.
The bright fluorescence signal and low background make YO-TAP-3 ideal for staining nucleic acids on microarrays, as well as for nuclear and chromosome counterstaining in multicolor fluorescence labeling experiments.
Simultaneous labeling with cell-impermeant YO-TAP-3 and cell-permeable LUCS 13 or Annexin V-AF488 can be used to assess cell viability and apoptosis.
Absorption and emission spectra of YO-TAP-3 (DNA–dye complex)
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General properties
Appearance: | blue solution |
Molecular weight: | 655.36 |
CAS number: | 157199-62-7 |
Molecular formula: | C26H31I2N3O |
IUPAC name: | trimethyl-[3-[4-[(Z,3Z)-3-(3-methyl-1,3-benzoxazol-2-ylidene)prop-1-enyl]quinolin-1-ium-1-yl]propyl]azanium;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: | 611 |
Emission maximum, nm: | 629 |