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Merck
CN

05-5580

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
EC Number:
209-358-4
PubChem Substance ID:
329748091
UNSPSC Code:
12352200
Beilstein/REAXYS Number:
3894858
Colour Index Number:
22120
MDL number:
MFCD00004028

Key Documents

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InChI key

IQFVPQOLBLOTPF-HKXUKFGYSA-L

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+;;

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

grade

JIS special grade

availability

available only in Japan

mp

>360 °C (lit.)

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pictograms

Health hazard
GHS08

signalword

Danger

Hazard Classifications

Carc. 1B - Repr. 2

Storage Class

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

wgk

WGK 3

ppe

Eyeshields, Gloves, type P2 (EN 143) respirator cartridges

Regulatory Information

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Certificates of Analysis (COA)

Lot/Batch Number
U0845
U9748
U4523
U5422
U2321

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David E Babcock et al.
Biomaterials, 34(13), 3196-3205 (2013-02-05)
Most catheter-based vascular medical devices today have hydrophilic lubricious coatings. This study was designed to perform a territory-based downstream analysis of end organs subsequent to angioplasty with coated balloon catheters to better understand the potential in vivo physiological consequence of
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
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
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
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