| Identification | Back Directory | [Name]
OG 488 Alkyne | [CAS]
1801181-54-3 | [Synonyms]
OG 488 Alkyne
Benzoic acid, 2-(2,7-difluoro-6-hydroxy-3-oxo-3H-xanthen-9-yl)-4-[(2-propyn-1-ylamino)carbonyl]- | [MOL File]
1801181-54-3.mol | [Molecular Weight]
449.36 |
| Chemical Properties | Back Directory | [Boiling point ]
712.9±60.0 °C(predicted) | [density ]
1.61±0.1 g/cm3(Temp: 20 °C; Press: 760 Torr)(predicted) | [solubility ]
DMSO, DMF | [pka]
3.38±0.36(predicted) | [Appearance]
Orange to red solid |
| Hazard Information | Back Directory | [Description]
OG 488 Alkyne, (also known as Oregon Green® 488 Alkyne or 2′,7′-Difluorocarboxyfluorescein Alkyne, 6-isomer) is a bright, green-fluorescent alkyne-activated probe routinely used for imaging of azide-containing biomolecules. OG 488 Alkyne reacts with azides via a copper-catalyzed click reaction (CuAAC) to form a stable triazole linker.The fluorinated carboxyfluoresceins have higher photostability and ionize at a lower pH (pKa 4.8) than fluorescein (pKa 6.5), which makes them superior fluorescent dyes for use as reporter molecules in biological systems. The absorption and emission of OG 488 dye are virtually identical to widely used fluorescein dyes.The combination of higher photostability, lower pKa, and excitation ideally suited to the 488 nm laser line makes OG 488 dye an ideal replacement for the widely used fluorescein dyes. | [Uses]
OG 488 alkyne is a bright, green-fluorescent alkyne-activated probe routinely used for imaging of azide-containing biomolecules. OG 488 Alkyne reacts with azides via a copper-catalyzed click reaction (CuAAC) to form a stable triazole linker. | [Abs/Em Maxima]
496/524 nm | [Extinction Coefficient]
84,000 | [Microscopy Laser Line]
488 nm | [Flow Cytometry Laser Line]
488 nm | [Spectrally Similar Dyes]
Fluorescein, Alexa Fluor® 488, Atto™ 488, CF® 488A dyes, DyLight® 488 |
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