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78948

Sigma-Aldrich

Atto 425 azide

suitable for fluorescence

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About This Item

Empirical Formula (Hill Notation):
C30H43N5O8
Molecular Weight:
601.69
UNSPSC Code:
12352200
PubChem Substance ID:
329768198

Assay

≥80.0% (HPCE)

form

solid

manufacturer/tradename

ATTO-TEC GmbH

fluorescence

λex 436 nm; λem 484 nm±10 nm in PBS, pH 7.4

suitability

suitable for fluorescence

storage temp.

−20°C

SMILES string

CC(CC(C)(C)N1CCCC(NCCOCCOCCOCCN=[N+]=[N-])=O)C(C1=C2)=CC3=C2OC(C(C(OCC)=O)=C3)=O

InChI

1S/C30H43N5O8/c1-5-42-28(37)24-18-22-17-23-21(2)20-30(3,4)35(25(23)19-26(22)43-29(24)38)10-6-7-27(36)32-8-11-39-13-15-41-16-14-40-12-9-33-34-31/h17-19,21H,5-16,20H2,1-4H3,(H,32,36)

InChI key

RSOCGOAHHWBJFE-UHFFFAOYSA-N

General description

Atto 425 is a fluorescent label with a coumarin structure. The dye is intended for application in the area of life science, e.g. labeling of DNA, RNA or proteins. Characteristic features of the label are strong absorption, high fluorescence quantum yield, large Stokes-shift, good photostability, and low molecular weight.
Atto 425 is moderately hydrophilic. Its fluorescence can be excited efficiently in the range 405 - 455 nm.
The azide modification is suitable for reactions with alkyne groups (Huisgen reaction - “Click Chemistry“).

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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

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Katrin G Heinze et al.
Biophysical journal, 86(1 Pt 1), 506-516 (2003-12-26)
Confocal fluorescence spectroscopy is a versatile method for studying dynamics and interactions of biomolecules in their native environment with minimal interference with the observed system. Analyzing coincident fluctuations induced by single molecule movement in spectrally distinct detection channels, dual-color fluorescence
Anna I Sulatskaya et al.
The journal of physical chemistry. B, 116(8), 2538-2544 (2012-01-25)
Benzothiazole dye thioflavin T (ThT) is a sensitive probe for amyloid fibril detection. The ThT probing is based on its unique ability to form highly fluorescent complexes with amyloid and amyloid-like fibrils. In this work we propose an approach of
Triple FRET: a tool for studying long-range molecular interactions.
Elke Haustein et al.
Chemphyschem : a European journal of chemical physics and physical chemistry, 4(7), 745-748 (2003-08-07)
Irina M Kuznetsova et al.
PloS one, 7(2), e30724-e30724 (2012-03-03)
A new approach for the determination of the amyloid fibril - thioflavin T (ThT) binding parameters (the number of binding modes, stoichiometry, and binding constants of each mode) is proposed. This approach is based on the absorption spectroscopy determination of
Frequency domain fluorescence microspectrometry: Application to cellular uptake and drug distribution.
Praus, P., et al.
Spectroscopy: An International Journal, 24, 303-307 (2010)
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