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Merck

C6767

Kongorot

Dye content ≥35 %, Powder

Synonym(e):

Direktrot 28, Kongorot 4B

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25 G

€ 35,80

100 G

€ 121,00

€ 35,80


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Über diesen Artikel

Empirische Formel (Hill-System):
C32H22N6Na2O6S2
CAS-Nummer:
Molekulargewicht:
696.66
UNSPSC Code:
12171500
NACRES:
NA.47
PubChem Substance ID:
EC Number:
209-358-4
MDL number:
Colour Index Number:
22120
Beilstein/REAXYS Number:
3894858

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Produktname

Kongorot, Dye content ≥35 %

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

form

powder

composition

Dye content, ≥35%

technique(s)

titration: suitable

color

red-brown

pH

6.7 (10 g/L)

mp

>360 °C (lit.)

solubility

H2O: 1 mg/mL

application(s)

diagnostic assay manufacturing
hematology
histology

storage temp.

room temp

Quality Level

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Dieser Artikel
C627775768861251
Congo Red analytical standard

Supelco

75768

Congo Red

technique(s)

titration: suitable

technique(s)

microbe id | staining: suitable

technique(s)

HPLC: suitable, gas chromatography (GC): suitable

technique(s)

titration: suitable

color

red-brown

color

-

color

-

color

-

application(s)

diagnostic assay manufacturing
hematology
histology

application(s)

diagnostic assay manufacturing
hematology
histology

application(s)

cleaning products
cosmetics
environmental
food and beverages
personal care

application(s)

diagnostic assay manufacturing
hematology
histology

form

powder

form

powder

form

-

form

powder

solubility

H2O: 1 mg/mL

solubility

H2O: 10 mg/mL

solubility

-

solubility

water: 1 mg/mL

composition

Dye content, ≥35%

composition

Dye content, ≥85%

composition

-

composition

Dye content, 50-60%

Application

  • Congo red has been used as a histochemical stain for the quantification of amyloid deposits in brain tissues.[1]
  • It has been used as a cell wall inhibiting agent in fungus Cryptococcus neoformans.[2]
  • It has also been used to study microstructural details in the cell walls of raw potato and fried potato using confocal microscopy.[3]

Biochem/physiol Actions

Congo red is a benzidine-based anionic diazo dye.[4] It is a histological dye which binds to many amyloid proteins and is used for the quantification of amyloid β-peptide aggregation.[5] Congo red also interacts with β-D-glucans, polysaccharides containing continuous β-(1→4)-linked D-glucopyranosyl units and some hemicellulosic galactoglucomannans.[6]

pictograms

Health hazard

signalword

Danger

Hazard Classifications

Carc. 1B - Repr. 2

Lagerklasse

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

wgk

WGK 3

ppe

Eyeshields, Gloves, type P3 (EN 143) respirator cartridges


Zulassungslistungen

Zulassungslistungen werden hauptsächlich für chemische Produkte erstellt. Für nicht-chemische Produkte können hier nur begrenzte Angaben gemacht werden. Kein Eintrag bedeutet, dass keine der Komponenten gelistet ist. Es liegt in der Verantwortung des Benutzers, die sichere und legale Verwendung des Produkts zu gewährleisten.

573-58-0

CAS No.

573-58-0

CAS No.

Hier finden Sie alle aktuellen Versionen:

Analysenzertifikate (COA)

Lot/Batch Number

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Besitzen Sie dieses Produkt bereits?

In der Dokumentenbibliothek finden Sie die Dokumentation zu den Produkten, die Sie kürzlich erworben haben.

Die Dokumentenbibliothek aufrufen

PKC1 is essential for protection against both oxidative and nitrosative stresses, cell integrity, and normal manifestation of virulence factors in the pathogenic fungus Cryptococcus neoformans.
Gerik KJ, et al.
Eukaryotic Cell, 7, 1685-1685 (2008)
Kinetic study and equilibrium isotherm analysis of Congo Red adsorption by clay materials.
Chemical Engineering Journal, 148, 354-364 (2009)
Quantification of cerebral amyloid angiopathy and parenchymal amyloid plaques with Congo red histochemical stain.
Wilcock DM, et al.
Nature Protocols, 1, 1591-1591 (2006)
Some changes in potato chips during frying observed by confocal laser scanning microscopy (CLSM).
Pedreschi F and Aguilera JM
Food Science and Technology International = Ciencia y tecnologia de Los Alimentos Internacional, 8, 197-201 (2002)
Use of Congo red-polysaccharide interactions in enumeration and characterization of cellulolytic bacteria from the bovine rumen.
Teather RM and Wood PJ
Applied and Environmental Microbiology, 43, 777-777 (1982)

Questions

1–3 of 3 Questions  
  1. hello, I would like to ask about this product, is it a powder or solution? thank you.

    1 answer
    1. As mentioned in the 'PROPERTIES' section, this product is supplied as a powder.

      Helpful?

  2. What is the Department of Transportation shipping information for this product?

    1 answer
    1. Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product.

      Helpful?

  3. Why does the SDS for Congo Red list carcinogen as an OSHA hazard, (Section 2) but in Section 11 on carcinogenicity, it states that there is no component identified as a carcinogen?

    1 answer
    1. The reason that there is not an OSHA listing for carcinogens on most of SDS that have a hazard of a carcinogen hazard is because that section of the SDS is specifically for the OSHA regulated carcinogens, also referred to as the OSHA 13. Congo red at this time is not specifically called out  as a carcinogen by the other 3 Organizations listed (IARC, NTP, ACGIH) either. Congo red is listed by the European Classification Labeling & Packaging (CLP) Regulation (which is a pretty definitive guide for hazard classification), as a carcinogen. No other organizations have had the time to classify this material at this time. This is why it is only listed as a carcinogen in section 2 and in section 15.

      Helpful?

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