28562
Atto 488 maleimide
BioReagent, suitable for fluorescence, ≥90% (HPLC)
Synonym(s):
Atto 488
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About This Item
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product line
BioReagent
Quality Level
Assay
≥90% (HPLC)
≥90% (degree of coupling )
manufacturer/tradename
ATTO-TEC GmbH
λ
in methanol: water (1:1) (with 0.1% perchloric acid)
UV absorption
λ: 501-506 nm Amax
suitability
suitable for fluorescence
storage temp.
−20°C
Related Categories
General description
Atto 488 Maleimide is a hydrophilic fluorescent label with high molecular absorption (90.000) and quantum yield (0.80). The fluorescence activity is excited at a maximum of 501nm, and the maximum emission is 523nm. Atto 488 Maleimide is optimized for argon laser excitation and characterized by high photostability. Hydrolysis of maleimides to a mixture of isomeric nonreactive maleamic acids can compete significantly with thiol modification, particularly above pH 8. Post coupling to a substrate, the label carries a net electrical charge of -1.
Application
Atto 488 Maleimide is used for labelling amines, which usually requires a higher pH than the reaction of maleimides with thiols. It is a well-suited fluorescent label for thiol groups.
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
11 - Combustible Solids
WGK
WGK 3
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
Personal Protective Equipment
dust mask type N95 (US), Eyeshields, Gloves
Certificates of Analysis (COA)
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