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250309

Sigma-Aldrich

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
EC Number:
277-916-4
UNSPSC Code:
12171500
PubChem Substance ID:
24855050
NACRES:
NA.47

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

signalword

Warning

hcodes

H315,H319

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

Certificates of Analysis (COA)

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Influence of Aromatic Substitution Patterns on Azo Dye Degradability by Streptomyces spp. and Phanerochaete chrysosporium
GRIGSBY M B P
Applied and Environmental Microbiology, 58, 3605-3613 (1992)
J Cuamatzi-Flores et al.
PloS one, 14(1), e0209711-e0209711 (2019-01-05)
Dye-decolorizing peroxidase (DyP) from the white rot basidiomycete Pleurotus ostreatus is a heme peroxidase able to oxidize diverse substrates, including recalcitrant phenols and dyes. This study analyzed the effect of chemical dyes on P. ostreatus growth, DyP activity and the

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