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Sigma-Aldrich

Atto 425

BioReagent, suitable for fluorescence

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Empirical Formula (Hill Notation):
C22H27NO6
CAS Number:
652966-03-5
Molecular Weight:
401.45
UNSPSC Code:
12352200
PubChem Substance ID:
329758237
NACRES:
NA.32

product line

BioReagent

Quality Level

100

Assay

≥90% (HPLC)

form

(Report result)

manufacturer/tradename

ATTO-TEC GmbH

transmittance

254 nm, >90%
425 nm, >90%

fluorescence

λex 440 nm; λem 484 nm

λ

in PBS, pH 7.4
 in ethanol (with 0.1% trifluoroacetic acid)

UV absorption

λ: 423-429 nm Amax

suitability

suitable for fluorescence

shipped in

wet ice

storage temp.

−20°C

SMILES string

CCOC(=O)C1=Cc2cc3C(C)CC(C)(C)N(CCCC(O)=O)c3cc2OC1=O

InChI

1S/C22H27NO6/c1-5-28-20(26)16-10-14-9-15-13(2)12-22(3,4)23(8-6-7-19(24)25)17(15)11-18(14)29-21(16)27/h9-11,13H,5-8,12H2,1-4H3,(H,24,25)

InChI key

WNDDWSAHNYBXKY-UHFFFAOYSA-N

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 425 is suitable for preparation of fluorescence labeling reagents.

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.

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)
Nermin Seda Kehr et al.
Nanoscale, 2(4), 601-605 (2010-07-21)
Microcontact printing (mCP) is used to immobilize dyes and peptides asymmetrically, by a "peptide coupling" reaction, on monolayers of zeolite L crystals in the contact area between the stamp and the surface of the monolayer. Chemically patterned surfaces of monolayers
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
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