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250309

4-Amino-1,1′-azobenzene-3,4′-disulfonic acid monosodium salt

Dye content 90 %

Synonym(s):

2-Amino-5-([4-sulfophenyl]azo)benzenesulfonic acid monosodium salt, Acid Yellow 9 monosodium salt

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About This Item

Linear Formula:
RO3SC6H4N=NC6H3(NH2)SO3R, R = H or Na
CAS Number:
74543-21-8
Molecular Weight:
379.34
MDL number:
MFCD03411548
UNSPSC Code:
12171500
PubChem Substance ID:
24855050
EC Number:
277-916-4
NACRES:
NA.47
eCl@ss:
32150326
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form

powder

composition

Dye content, 90%

λmax

489 nm

ε (extinction coefficient)

11438 at 489 nm in 0.1 M HCl at 0.01 g/L, 15302 at 385 nm in 1 M HCl at 0.01 g/L

application(s)

diagnostic assay manufacturing
hematology
histology

storage temp.

room temp

SMILES string

[Na+].[Na+].Nc1ccc(cc1S(O)(=O)=O)\N=N\c2ccc(cc2)S([O-])(=O)=O.Nc3ccc(cc3S([O-])(=O)=O)\N=N\c4ccc(cc4)S(O)(=O)=O

InChI

1S/2C12H11N3O6S2.2Na/c2*13-11-6-3-9(7-12(11)23(19,20)21)15-14-8-1-4-10(5-2-8)22(16,17)18;;/h2*1-7H,13H2,(H,16,17,18)(H,19,20,21);;/q;;2*+1/p-2/b2*15-14+;;

InChI key

MPOAAHDXCIUENZ-XNDFEMONSA-L

General description

4-Amino-1,1′-azobenzene-3,4′-disulfonic acid monosodium salt, also called as acid yellow 9, belongs to the class of azo dyes.

Application

4-Amino-1,1′-azobenzene-3,4′-disulfonic acid monosodium salt has been used as a control to study the influence of aromatic substitution patterns on azo dye degradability by Streptomyces spp and the fungus Phanerochaete chrysosporium.

Pictograms

Exclamation mark
GHS07

Signal Word

Warning

Hazard Codes

H315,H319

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2

Storage Class

11 - Combustible Solids

WGK

WGK 3

Flash Point (°F)

Not applicable

Flash Point (°C)

Not applicable

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