50332
Atto 612 Q maleimide
BioReagent, suitable for fluorescence
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About This Item
product line
BioReagent
Assay
≥90% (coupling to thiols)
form
solid
manufacturer/tradename
ATTO-TEC GmbH
technique(s)
UV/Vis spectroscopy: suitable
suitability
corresponds for UV test
suitable for fluorescence
storage temp.
−20°C
Application
Atto 612Q is a new quencher for fluorescence characterized by high molecular absorption (114.000). Atto 612Q is characterized by a high photostability and thermostability. It is slightly hydrophilic, with excellent solubility in polar solvents as DMF or DMSO. Maleimides are well suited for coupling to thiol groups. This is similar to iodacetamides, but maleimides do react more thiol selective. They do not show significant reaction with histidine or methionine. Hydrolysis of maleimides to a mixture of isomeric nonreactive maleamic acids can compete significantly with thiol modification, particularly above pH 8. Maleimides may be used for labeling of amines, which usually requires a higher pH than reaction of maleimides with thiols.
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.
Storage Class Code
13 - Non Combustible Solids
WGK
WGK 3
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
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Pete Crisalli et al.
Bioconjugate chemistry, 23(9), 1969-1980 (2012-08-24)
We describe the synthesis and properties of new fluorescence quenchers containing aldehyde, hydrazine, and aminooxy groups, allowing convenient bioconjugation as oximes or hydrazones. Conjugation to oligonucleotides proceeded in high yield with aniline as catalyst. Kinetics studies of conjugation show that
Magdalena Swierczewska et al.
Physical chemistry chemical physics : PCCP, 13(21), 9929-9941 (2011-03-08)
Fluorescence-based assays and detection techniques are among the most highly sensitive and popular biological tests for researchers. To match the needs of research and the clinic, detection limits and specificities need to improve, however. One mechanism is to decrease non-specific
Michiko Kimoto et al.
Journal of the American Chemical Society, 132(43), 15418-15426 (2010-10-14)
In the development of orthogonal extra base pairs for expanding the genetic alphabet, we created novel, unnatural base pairs between fluorophore and quencher nucleobase analogues. We found that the nucleobase analogue, 2-nitropyrrole (denoted by Pn), and its 4-substitutions, such as
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