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Fast Yellow AB

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Fast Yellow AB
Names
IUPAC name 2-amino-5-benzenesulfonic acid
Other names Fast Yellow
Acid Yellow
Food Yellow 2
C.I. 13015
Identifiers
CAS Number
3D model (JSmol)
ECHA InfoCard 100.018.448 Edit this at Wikidata
E number E105 (colours)
CompTox Dashboard (EPA)
SMILES
  • Nc1ccc(cc1OS(O)=O)/N=N/c2ccc(OS(O)=O)cc2
Properties
Chemical formula C12H11N3O6S2
Molar mass 357.36
Except where otherwise noted, data are given for materials in their standard state (at 25 °C , 100 kPa). checkverify (what is  ?) Infobox references
Chemical compound

Fast Yellow AB is an azo dye denoted by E number E105. It was used as a food dye. It is now delisted in both Europe and USA and is forbidden if used in foods and drinks, as toxicological data has shown it is harmful. E105 has been implicated in non-atopic asthma.

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