| Identification | Back Directory | [Name]
2-([1-(3-[[3-(DIMETHYL(3-[4-[(E)-(3-METHYL-1,3-BENZOXAZOL-3-IUM-2-YL)METHYLIDENE]-1(4H)-QUINOLINYL]PROPYL)AMMONIO)PROPYL](DIMETHYL)AMMONIO]PROPYL)-4(1H)-QUINOLINYLIDENE]METHYL)-3-METHYL-1,3-BENZOXAZOL-3-IUM TETRAIODIDE | [CAS]
143413-85-8 | [Synonyms]
YOYO 1
DiYO?-1
Chebi:51224
Yoyo 1 Iodide
o(benzo-1,3-oxazole)-2-methylidene)quinolinium
1,1’-((4,4,7,7-tetramethyl)-4,7-diazaundecamethylene)bis-4-(3-methyl-2,3-dihydr
1,1'-((4,4,7,7-tetramethyl)-4,7-diazaundecamethylene)bis-4-(3-methyl-2,3-dihydro(benzo-1,3-oxazole)-2-methylidene)quinolinium
1,1'-(1,3-Propanediylbis((dimethyliminio)-3,1-propanediyl))bis(4-(3-methyl-2(3H)-benzoxazolylidene)methyl)quinolinium tetraiodide
QUINOLINIUM, 1,1'-[1,3-PROPANEDIYLBIS[(DIMETHYLIMINIO)-3,1-PROPANEDIYL]]BIS[4-[(3-METHYL-2(3H)-BENZOXAZOLYLIDENE)METHYL]-, TETRAIODIDE
N,N,N',N'-Tetramethyl-N,N'-bis(3-(4-((3-methyl-2(3H)-benzoxazolylidene)methyl)quinolinium-1-yl)propyl)1,3-propanediaminium tetraiodide
1,1'-((4,4,7,7-Tetramethyl)-4,7-diazaundecamethylene)bis-4-(3-methyl-2,3-dihydro(benzo-1,3-oxazole)-2-methylidene)quinolinium tetraiodide
1,1'-(4,4,7,7-Tetramethyl-4,7-diazaundecamethylene)-bis-4-(3-methyl-2,3-dihydro-(benzo-1,3-oxazole)-2-methylidene)-quinolinium tetraiodide
1,1'-{Propane-1,3-diylbis[(dimethylammonio)propane-3,1-diyl]}bis{4-[(3-methyl-1,3-benzoxazol-2(3H)-ylidene)methyl]quinolinium} tetraiodide
Quinolinium, 1,1
0
-[1,3-propanediylbis
[(dimethyliminio)-3,1-propanediyl]]bis[4-[(3-methyl-2
(3h)-benzoxazolylidene)methyl]-, Tetraiodide
2,2'-{Propane-1,3-diylbis[(dimethylammonio)propane-3,1-diylquinolin-1-yl-4-ylidenemethylylidene]}bis(3-methyl-1,3-benzoxazol-3-ium) tetraiodide
2-([1-(3-[[3-(DIMETHYL(3-[4-[(E)-(3-METHYL-1,3-BENZOXAZOL-3-IUM-2-YL)METHYLIDENE]-1(4H)-QUINOLINYL]PROPYL)AMMONIO)PROPYL](DIMETHYL)AMMONIO]PROPYL)-4(1H)-QUINOLINYLIDENE]METHYL)-3-METHYL-1,3-BENZOXAZOL-3-IUM TETRAIODIDE | [Molecular Formula]
C49H58IN6O2+3 | [MDL Number]
MFCD07433935 | [MOL File]
143413-85-8.mol | [Molecular Weight]
889.95 |
| Chemical Properties | Back Directory | [Melting point ]
>250 ℃ | [solubility ]
Soluble in dimethyl sulfoxide, water | [form ]
powder | [color ]
Orange-red | [Appearance]
orange solution | [ex/em]
491/509 nm | [ε(extinction coefficient)]
98900 cm−1M−1 | [λmax]
491 nm | [Φ(quantum yield)]
0.52 | [Biological Applications]
Nucleic acid hybridization; nucleic acid sequencing; detecting nucleic acids,cells,human papilloma virus (HPV),pathogens,spores,cancer cells,stress biomarkers,viruses |
| Hazard Information | Back Directory | [Description]
YODi-1 (Oxazole Yellow Homodimer, also known as YOYO®-1) is a green fluorescent carbocyanine dimeric dye. YODi-1 is a cell-impermeant nucleic acid stain that is nonfluorescent in the absence of nucleic acids but exhibits over a thousand-fold fluorescence enhancement upon binding to dsDNA.
The bright fluorescence signal and low background make YODi-1 ideal for staining nucleic acids on microarrays, as well as for nuclear and chromosome counterstaining in multicolor fluorescence labeling experiments. YODi-1 can also be used for the analysis of single molecules of DNA. | [Chemical Properties]
ex/em: 491/509 nm
Extinction coefficient (ε): 98900 cm??1M??1
Quantum yield (Φ): 0.52 | [Uses]
Thiazole orange dimer YOYO 1 is a green fluorescent dye used for DNA staining. It belongs to the monomethine cyanine dye family and is a tetracationic homodimer of oxazole yellow (abbreviated as YO, hence the name YOYO), usually provided as a tetraiodide salt. In aqueous buffer, the free YOYO-1 dye (λmax 458 nm; λmax 564 nm) has a very low fluorescence quantum yield, but after binding to double-stranded DNA through diintercalation, the fluorescence intensity is increased by 3200 times (λmax 489 nm; λmax 509 nm). | [References]
[1] Wang L, et al.Ultrafast Transient Absorption Spectra of Photoexcited YOYO-1 molecules call for additional investigations of their fluorescence quenching mechanism. J Photochem Photobiol A Chem. 2018 Dec 1;367:411-419. | [Abs/Em Maxima]
490/508 nm | [Fluoresene quantum yield]
0.37 |
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