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C6767

Congo Red

Dye content ≥35 %, Powder

Sinónimos:

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

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A ustedes/SKUDisponibilidadPrecio
25 g

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35,00 €
100 g
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118,00 €

Acerca de este artículo

Fórmula empírica (notación de Hill):
C32H22N6Na2O6S2
Número CAS:
Peso molecular:
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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Nombre del producto

Congo Red, Dye content ≥35 %

form

powder

Quality Segment

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

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

Application

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

Biochem/physiol Actions

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

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Este artículo
C627775768861251
description

Dye content ≥35 %

description

certified by the BSC, BioXtra

description

analytical standard

description

certified by the BSC

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

-

solubility

H2O: 1 mg/mL

solubility

H2O: 10 mg/mL

solubility

-

solubility

water: 1 mg/mL

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

composition

Dye content, ≥35%

composition

Dye content, ≥85%

composition

-

composition

Dye content, 50-60%


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pictograms

Health hazard

signalword

Danger

Hazard Classifications

Carc. 1B - Repr. 2

Clase de almacenamiento

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


Listados normativos

Los listados normativos se proporcionan para los productos químicos principalmente. Para los productos no químicos sólo se puede proporcionar información limitada. Si no hay ninguna entrada, significa que ninguno de los componentes está en la lista. Es obligación del usuario garantizar el uso seguro y legal del producto.

573-58-0

CAS No.

573-58-0

CAS No.


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Certificados de análisis (COA)

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Preguntas

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

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

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

    1 respuesta
    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.

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  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 respuesta
    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.

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