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860956

Sigma-Aldrich

Congo Red

certified by the Biological Stain Commission, Dye content 85 %

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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About This Item

Fórmula empírica (notación de Hill):
C32H22N6Na2O6S2
Número de CAS:
573-58-0
Peso molecular:
696.66
Colour Index Number:
22120
Beilstein/REAXYS Number:
3894858
EC Number:
209-358-4
MDL number:
MFCD00004028
UNSPSC Code:
12171500

grade

certified by the Biological Stain Commission

composition

Dye content, 85%

technique(s)

titration: suitable

pH

3.0-5.0, blue to red

mp

>360 °C (lit.)

λmax

497 nm

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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Referencia del producto
Descripción
Precios

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_germany

WGK 3

ppe

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

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Certificados de análisis (COA)

Lot/Batch Number
05810PP
09401TB
08323HI
07020MG
0603KK

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