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Sigma-Aldrich

Atto 565 maleimide

BioReagent, suitable for fluorescence

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About This Item

Fórmula empírica (Notação de Hill):
C37H37ClN4O10
Peso molecular:
733.16
Número MDL:
Código UNSPSC:
12352111
NACRES:
NA.32

linha de produto

BioReagent

Nível de qualidade

Ensaio

>90.0% (HPLC)

Formulário

powder

fabricante/nome comercial

ATTO-TEC GmbH

transmitância

254 nm
565 nm

fluorescência

λex 563 nm; λem 592 nm in 0.1 M phosphate pH 7.0

λ

(ethanol with 0.1% trifluoroacetic acid)

Absorção UV

λ: 560-566 nm Amax

adequação

corresponds for coupling to thiols
suitable for fluorescence

temperatura de armazenamento

−20°C

Aplicação

Atto 565 is a new label with high molecular absorption (120.000) and quantum yield (0.9) as well as sufficient stoke′s shift (excitation maximum 563 nm, emission maximum 592 nm). Due to an insignificant triplet formation rate it is well suited for single molecule detection applications. 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.

Informações legais

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

Código de classe de armazenamento

11 - Combustible Solids

Classe de risco de água (WGK)

WGK 3

Ponto de fulgor (°F)

Not applicable

Ponto de fulgor (°C)

Not applicable

Equipamento de proteção individual

Eyeshields, Gloves, type N95 (US)


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