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05-5580

Sigma-Aldrich

Congo Red

JIS special grade

Synonym(s):

Congo Red 4B, Cosmos Red, Cotton Red B, Cotton Red C, Direct Red 28, Direct Red R, Direct Red Y

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About This Item

Empirical Formula (Hill Notation):
C32H22N6Na2O6S2
CAS Number:
573-58-0
Molecular Weight:
696.66
Colour Index Number:
22120
Beilstein:
3894858
EC Number:
209-358-4
MDL number:
MFCD00004028
UNSPSC Code:
12352200
PubChem Substance ID:
329748091

grade

JIS special grade

availability

available only in Japan

mp

>360 °C (lit.)

SMILES string

[Na+].[Na+].Nc1c(cc(c2ccccc12)S([O-])(=O)=O)\N=N\c3ccc(cc3)-c4ccc(cc4)\N=N\c5cc(c6ccccc6c5N)S([O-])(=O)=O

InChI

1S/C32H24N6O6S2.2Na/c33-31-25-7-3-1-5-23(25)29(45(39,40)41)17-27(31)37-35-21-13-9-19(10-14-21)20-11-15-22(16-12-20)36-38-28-18-30(46(42,43)44)24-6-2-4-8-26(24)32(28)34;;/h1-18H,33-34H2,(H,39,40,41)(H,42,43,44);;/q;2*+1/p-2/b37-35+,38-36+;;

InChI key

IQFVPQOLBLOTPF-HKXUKFGYSA-L

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Pictograms

Health hazard
GHS08

Signal Word

Danger

Hazard Statements

H350,H361d

Hazard Classifications

Carc. 1B - Repr. 2

Storage Class Code

6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

WGK

WGK 3

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

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Baoliang Ma et al.
International journal of biological macromolecules, 53, 82-87 (2012-11-15)
The formation of amyloid fibrils by β-lactoglobulin in the presence of GndHCl has been monitored by using thioflavin T (ThT) fluorescence, Congo Red and transmission electron microscopy (TEM). Large quantities of aggregated protein are formed by incubating β-lactoglobulin in 2M
Vijay K Sharma et al.
Applied and environmental microbiology, 79(7), 2384-2396 (2013-02-05)
Although molecular mechanisms promoting adherence of enterohemorrhagic Escherichia coli (EHEC) O157:H7 on epithelial cells are well characterized, regulatory mechanisms controlling biofilm formation are not fully understood. In this study, we demonstrate that biofilm formation in EHEC O157:H7 strain 86-24 is
Guangshu Zhang et al.
Dalton transactions (Cambridge, England : 2003), 42(10), 3660-3666 (2013-01-10)
Novel nickel hierarchical structures were prepared through a facile one-pot solvothermal approach in the presence of surfactant and mineralizer. The influence of dynamics factors such as polyvinylpyrrolidone (PVP) content, ratio (R) between NaF and NH(3)·H(2)O on the morphologies of the
Laramie P Jameson et al.
ACS chemical neuroscience, 3(11), 807-819 (2012-11-23)
Dye-binding assays, such as those utilizing Congo red and thioflavin T, are among the most widely used tools to probe the aggregation of amyloidogenic biomolecules and for the evaluation of small molecule inhibitors of amyloid aggregation and fibrillization. A number
Rita A Rapa et al.
PloS one, 8(3), e58430-e58430 (2013-03-14)
The integron is a genetic recombination system that catalyses the acquisition of genes on mobilisable elements called gene cassettes. In Vibrio species, multiple acquired gene cassettes form a cassette array that can comprise 1-3% of the bacterial genome. Since 75%
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