Atto 655
SIGMA/93711 - BioReagent, suitable for fluorescence, ≥85% (HPLC)
MDL Number: MFCD03456136
Product Type: Chemical
| λ | in ethanol (with 0.1% trifluoroacetic acid) |
| assay | ≥85% (HPLC) |
| fluorescence | λex 655 nm; λem 680 nm in 0.1 M phosphate pH 7.0 |
| form | powder |
| InChI | 1S/C27H33N3O6S/c1-4-29-9- |
| InChI key | FOYVTVSSAMSORJ-UHFFFAOYSA |
| manufacturer/tradename | ATTO-TEC GmbH |
| product line | BioReagent |
| Quality Level | 100  |
| storage temp. | −20°C |
| suitability | suitable for fluorescence |
| transmittance | 254 nm |
| 655 nm | |
| UV absorption | λ: 652-658 nm Amax |
| Application: | Atto labels are designed for highest sensitivity applications. A unique combination of advantages makes them highly favorable tools for all kinds of labeling applications. Some of their properties make them specifically interesting for single molecule detection. Atto labels are based on rigid structures and do not show any cis-trans-isomerization, which lowers the brightness of signals and leads to environment dependency, e.g., spectral shifts by conjugation. Atto 655 shows a molar extinction of 110,000 and QY of 30% in water (50% in ethanol). Decay time is 1.9 ns. |
| Other Notes: | New red absorbing fluorescent dye with best signal-to-noise ratio and long fluorescence life-time. Useful as a biophysical probe for binding interactions. |
| RIDADR | NONH for all modes of transport |
| WGK Germany | WGK 3 |
| Flash Point(F) | Not applicable |
| Flash Point(C) | Not applicable |
| Purity | ≥85% (HPLC) |
| Storage Temp. | −20°C |
| UNSPSC | 12352200 |