Fast Yellow AB

Fast Yellow AB
Skeletal formula of Fast Yellow AB
Ball-and-stick model of the Fast Yellow AB molecule
Names
IUPAC name
2-amino-5-[(E)-(4-sulfophenyl)diazenyl]benzenesulfonic acid
Other names
  • Fast Yellow
  • Acid Yellow
  • Food Yellow 2
  • C.I. 13015
Identifiers
CAS Number
  • 101-50-8 checkY
3D model (JSmol)
  • Interactive image
ChEBI
  • CHEBI:86124
ChEMBL
  • ChEMBL2172377
ChemSpider
  • 54957
ECHA InfoCard 100.018.448 Edit this at Wikidata
EC Number
  • 202-947-7
E number E105 (colours)
PubChem CID
  • 60996
  • 75918 Na salt
UNII
  • 2ZQE5CCH2H checkY
CompTox Dashboard (EPA)
  • DTXSID00889458 Edit this at Wikidata
InChI
  • InChI=1S/C12H11N3O6S2/c13-11-6-3-9(7-12(11)23(19,20)21)15-14-8-1-4-10(5-2-8)22(16,17)18/h1-7H,13H2,(H,16,17,18)(H,19,20,21)
    Key: DCYBHNIOTZBCFS-UHFFFAOYSA-N
  • Nc1ccc(cc1OS(O)=O)/N=N/c2ccc(OS(O)=O)cc2
Properties
Chemical formula
 C12H11N3O6S2
Molar mass 357.36 g·mol−1
Hazards
GHS labelling:
Pictograms
 GHS07: Exclamation mark
Warning
Hazard statements
 H315, H319, H335
Precautionary statements
 P261, P264, P271, P280, P302+P352, P304+P340, P305+P351+P338, P312, P321, P332+P313, P337+P313, P362, P403+P233, P405, P501
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references
Chemical compound

Fast Yellow AB is an azo dye. It used to be used as a food dye, designated in Europe by the E number E105. 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.[1]

References

  1. ^ STATEMENT OF HAZARDOUS NATURE. Synonyms: ...Fast Yellow AB... pdf
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