Atto 430LS

suitable for fluorescence

Atto 430LS carboxy, Atto 430LS free acid


≥80.0% (HPCE)

Quality Level

mol wt

Mw 589 g/mol


λex 433 nm; λem 545 nm±10 nm in PBS, pH 7.4


suitable for fluorescence

storage temp.


General description

Atto 430LS is a new fluorescent label featuring an extraordinary large Stokes-Shift of 114 nm. Thus its emission spectrum is almost completely separated from its absorption spectrum, making the dye highly suitable for multiplexing experiments. Atto 430LS is very hydrophilic and shows excellent water solubility. The dye exhibits a high fluorescence quantum yield, which is only slightly reduced after conjugation to biomolecules, e.g. proteins, even at high degrees of labeling (DOL).
Atto 430LS is an anionic dye. After conjugation to a substrate the dye carries a net electrical charge of -1. The fluorescence is excited most efficiently in the range 400 - 460 nm.

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NONH for all modes of transport

WGK Germany


Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificate of Analysis
Certificate of Origin

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