Products 2706-28-7

CAS 2706-28-7 appears in our catalog under these names: Sodium 2-amino-5-((4-sulfonatophenyl)diazenyl)benzenesulfonate, Dye content 90 %, 4-Aminoazobenzene-3,4'-disulfonic Acid Disodium Salt. Offered by: Chemat Brand, TRC. Available pack sizes: on request, 250mg, 500mg, 50mg.

Sodium 2-amino-5-((4-sulfonatophenyl)diazenyl)benzenesulfonate, Dye content 90 %
Chemat Brand
  • size: on request
  • Variants: 1
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4-Aminoazobenzene-3,4'-disulfonic Acid Disodium Salt
TRC
  • size: 250mg, 500mg, 50mg
  • Variants: 3
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Structural formula: {0} (CAS {1})

Fast yellow is an organic sodium salt that is 4-aminoazobenzene-3,4'-disulfonic acid in which the protons of both of the sulfo groups have been replaced by sodium ions. It is used as a biological stain. It was formerly used as a food coloring agent (E105), but its use in food or drinks is now forbidden. It has a role as a histological dye. It contains a 4-aminoazobenzene-3,4'-disulfonate.

Source: ChEBI

Identity
Molecular formulaC12H9N3Na2O6S2
Molecular weight401.3 g/mol
IUPAC namedisodium;2-amino-5-[(4-sulfonatophenyl)diazenyl]benzenesulfonate
InChIKeyFPVGTPBMTFTMRT-UHFFFAOYSA-L
SMILESC1=CC(=CC=C1N=NC2=CC(=C(C=C2)N)S(=O)(=O)[O-])S(=O)(=O)[O-].[Na+].[Na+]

Computed by PubChem (NCBI)

Synonyms: Benzenesulfonic acid, 2-amino-5-(2-(4-sulfophenyl)diazenyl)-, sodium salt (1:?), Fast Yellow AB, Yellow acid, Acid yellow 9, C.I. Acid Yellow 9, Yellow Fast, Cilefa Yellow R, Fast Yellow S, Fast Yellow Y, Acid Yellow AT
Isomers (same molecular formula)
disodium;4-[2-(4-sulfonatophenyl)iminohydrazinyl]benzenesulfonate C12H9N3Na2O6S2