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42424

Atto 550

suitable for fluorescence, ≥90% (HPLC)

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About This Item

UNSPSC Code:
12352108
NACRES:
NA.32
MDL number:
MFCD05865402
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Quality Level

100

assay

≥90% (HPLC)

form

powder

manufacturer/tradename

ATTO-TEC GmbH

λ

in ethanol (with 0.1% trifluoroacetic acid)

UV absorption

λ: 553-559 nm Amax

suitability

suitable for fluorescence

storage temp.

−20°C

General description

Atto 550 is a new label with high molecular absorption (120,000) and quantum yield (0.80) as well as sufficient Stokes shift between excitation and emission maximum. Atto 550 can be used with similar excitation source and fluorescence filters as Cy3™ and is characterized by a high photostability.

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Application

Atto fluorescent labels are designed for high sensitivity applications, including single molecule detection. Atto labels have rigid structures that do not show any cis-trans-isomerization. Thus these labels display exceptional intensity with minimal spectral shift on conjugation. Atto 550, which is similar to Cy3™, may be useful in applications such as fluorescence resonance energy transfer (FRET) and as a tag for molecules such as secondary antibodies.

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.
Cy3 is a trademark of Cytiva

Storage Class

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

42424-1MG-F: + 42424-BULK-F:

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Articles

Fluorescence Lifetime Measurement

Fluorescence lifetime measurement is advantageous over intensity-based measurements. Applications include fluorescence lifetime assays, sensing and FLI.

蛍光寿命測定

蛍光寿命測定には、蛍光強度に基づく測定法にない利点があります。応用例として、蛍光寿命分析、蛍光寿命センシングおよび蛍光寿命イメージング（FLI）が挙げられます。