Bio-Synthesis offers ATTO550 fluorescent dye oligonucleotide labeling services. ATTO 550 is a fluorescent label related to Rhodamine 6G and Rhodamine B. Characteristic features of the label are strong absorption, high fluorescence quantum yield, and has high thermal and photo-stability. ATTO 550 consists of three isomers with practically identical absorption and fluorescence. The fluorescence is excited most efficiently in the range 540 - 565 nm. They dye can be use as an alternative dye for Alexa flour 555 or NED fluorescent dye. Features:
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-20°C To -70°C Oligonucleotides are stable in solution at 4°C for up to 2 weeks. Properly reconstituted material stored at -20°C should be stable for at least 6 months. Dried DNA (when kept at -20°C) in a nuclease-free environment should be stable for years.