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
• 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

Properties

• 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

Description

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.

Safety Information

• pictograms: GHS07
• signalword: Warning
• hcodes: H315,H319
• pcodes: P264 - P280 - P302 + P352 - P305 + P351 + P338 - P332 + P313 - P337 + P313
• 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