78948

Sigma-Aldrich

Atto 425 azide

suitable for fluorescence

Empirical Formula (Hill Notation):
C30H43N5O8
Molecular Weight:
601.69
PubChem Substance ID:

assay

≥80.0% (HPCE)

Quality Level

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.

Certificate of Analysis

Certificate of Origin

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)
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...
Frequency domain fluorescence microspectrometry: Application to cellular uptake and drug distribution.
Praus, P., et al.
Spectroscopy: An International Journal, 24, 303-307 (2010)
Anna I Sulatskaya et al.
The journal of physical chemistry. B, 115(39), 11519-11524 (2011-08-26)
The fluorescence of the benzothiazole dye thioflavin T (ThT) is a well-known test for amyloid fibril formation. It has now become evident that ThT can also be used for structural investigations of amyloid fibrils and even for the treatment of...
Richard S Agnes et al.
Journal of the American Chemical Society, 132(17), 6075-6080 (2010-04-13)
A fluorescent sensor of protein kinase activity has been developed and used to characterize the compartmentalized location of cAMP-dependent protein kinase activity in mitochondria. The sensor functions via a phosphorylation-induced release of a quencher from a peptide-based substrate, producing a...

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