STAR FLUOR 680 NHS ester generates bright and stable fluorescence emission in the 700nm near- infrared spectral region. Extreme water solubility, pH insensitivity and excellent photostability make STAR FLUOR 680 NHS ester the reagent of choice for any near-IR based imaging system.
STAR FLUOR NHS ester 680 shows low background in the near infrared region resulting in excellent signal-to-noise ratio.
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Properties for STAR FLUOR 680 NHS ester
| Features | High water solubility and fluorescence emission Excellent signal-to-noise ratios As bright as IRDye 680LT |
| λabs (Methanol) | 677 nm (abs) |
| λem (Methanol) | 703 nm (em) |
| Stokes shift | 26 nm |
| ε (Methanol) | 195,000 M-1cm-1 |
| Φ (Methanol) | 0.23 |
| Quencher | QSY21 |
| Solubility | Water, Methanol, DMF, DMSO |
| Laser excitation | Krypton 647 nm red - Diode 650 nm red - Diode 670 nm red |
| Spectrally comparable dyes | Alexa Fluor® 660/680 Cy5.5 Promo Fluor® 680 IRDye 680LT |
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