Skip to Content
Merck
All Photos(1)

Key Documents

06715

Sigma-Aldrich

Atto 490LS

suitable for fluorescence

Synonym(s):

Atto 490LS carboxy, Atto 490LS free acid

Sign Into View Organizational & Contract Pricing


About This Item

UNSPSC Code:
12352200
NACRES:
NA.32

Assay

≥80.0% (HPCE)

mol wt

Mw 696 g/mol

manufacturer/tradename

ATTO-TEC GmbH

fluorescence

λex 496 nm; λem 651 nm±10 nm in PBS, pH 7.4

suitability

suitable for fluorescence

storage temp.

−20°C

General description

Atto 490LS is a new fluorescent label featuring an extraordinary large Stokes-Shift of 165 nm. Thus the emission spectrum is almost completely separated from its absorption spectrum, making the dye highly suitable for
multiplexing experiments, in particular in combination with Atto 488 and Atto 514. Atto 490LS is very hydrophillic and shows excellent water solubility. The dye exhibits a relatively high fluorescence quantum yield, which is only slightly reduced after conjugation to biomolecules, e.g. proteins, even at high degrees of labeling (DOL). Atto 490LS is an anionic dye. After conjugation to a substrate the dye carries a net electrical charge of -1.

find more information here

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


Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number

Don't see the Right Version?

If you require a particular version, you can look up a specific certificate by the Lot or Batch number.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service