Atto 647N is a superior label with high molecular absorption (150.000) and quantum yield (0.65) as well as sufficient stoke′s shift. Atto 647 N is characterized by a high thermal and photostability.
Absorption and fluorescence are independent of pH, at least in the most relevant range of pH 4 to 11. The iodoacetamide derivative reacts, like the maleimide, with a sulfhydryl group forming a thioether bond. It is predominantly used for tagging cystein residues of proteins.

This product is for Research use only. In case of intended commercialization, please contact the IP-holder (ATTO-TEC GmbH, Germany) for licensing.