Atto 665 NHS ester
SIGMA/04022 - BioReagent, suitable for fluorescence
Product Type: Chemical
| assay | ≥90% (coupling to amines) |
| fluorescence | λex 663 nm; λem 684 nm in 0.1 M phosphate pH 7.0 |
| manufacturer/tradename | ATTO-TEC GmbH |
| mol wt | Mw 820 g/mol |
| product line | BioReagent |
| Quality Level | 100  |
| storage temp. | −20°C |
| suitability | suitable for fluorescence |
| General description: | Atto 665 is a new fluorescent label closely related to Atto 647N. It shows extraordinary high fluorescence quantum yield, excellent thermal and photo-stability, outstanding ozone resistance, and very little triplet formation. Atto 665 is a cationic (charge +1). The dye is moderately hydrophilic. The NHS-ester of the dye reacts easily with amino-groups of proteins and other bio-molecules. Since the amino group must be non protonated to be reactive, the pH of the reaction is recommended to be about 8.3. Prepare labeling solution of NHS-ester immediately before use by dissolving the vial content in anhydrous and amine-free DMF or DMSO. find more information here |
| Legal Information: | This product is for Research use only. In case of intended commercialization, please contact the IP-holder (ATTO-TEC GmbH, Germany) for licensing. |
| RIDADR | NONH for all modes of transport |
| WGK Germany | WGK 3 |
| Flash Point(F) | Not applicable |
| Flash Point(C) | Not applicable |
| Purity | ≥90% (coupling to amines) |
| Storage Temp. | −20°C |
| UNSPSC | 12352108 |