Brilliant blue FCF

Brilliant blue FCF (Blue 1) is a synthetic organic compound used primarily as a blue colorant for processed foods, medications, dietary supplements, and cosmetics. It is classified as a triarylmethane dye and is known under various names, such as FD&C Blue No. 1 or acid blue 9. It is denoted by E number E133 and has a color index of 42090. It has the appearance of a blue powder and is soluble in water and glycerol, with a maximum absorption at about 628 nanometers. It is one of the oldest FDA-approved color additives and is generally considered nontoxic and safe.

"Blue 1" redirects here. For the airline, see Blue1.
Not to be confused with Coomassie brilliant blue.
Brilliant blue FCF
Names
IUPAC name
disodium;2-[[4-[ethyl-[(3-sulfonatophenyl)methyl]amino]phenyl]-[4-[ethyl-[(3-sulfonatophenyl)methyl]azaniumylidene]cyclohexa-2,5-dien-1-ylidene]methyl]benzenesulfonate
Other names
  • FD&C Blue No.1
  • Acid blue 9
  • D&C Blue No. 4
  • Atracid Blue FG
  • Acilan Turquoise Blue AE
  • Aizen Brilliant Blue FCF
  • Alzen Food Blue No. 1
  • Erioglaucine
  • Eriosky blue
  • Patent Blue AR
  • Xylene Blue VSG
  • C.I. 42090
  • CI Food Blue 2
  • Basacid Blue 755
  • Sulfacid Brilliant Blue 5 J
  • Neolan Blue E-A
  • Brilliant Blue FD
  • Brilliant Blue Lake
  • Blue #1 Lake
  • Bucacid Azure Blue
Identifiers
3D model (JSmol)
ChEBI
ChEMBL
ChemSpider
ECHA InfoCard 100.021.219
EC Number
  • 223-339-8
E number E133 (colours)
KEGG
PubChem CID
UNII
  • InChI=1S/C37H36N2O9S3.2Na/c1-3-38(25-27-9-7-11-33(23-27)49(40,41)42)31-19-15-29(16-20-31)37(35-13-5-6-14-36(35)51(46,47)48)30-17-21-32(22-18-30)39(4-2)26-28-10-8-12-34(24-28)50(43,44)45;;/h5-24H,3-4,25-26H2,1-2H3,(H2-,40,41,42,43,44,45,46,47,48);;/q;2*+1/p-2 Y
    Key: SGHZXLIDFTYFHQ-UHFFFAOYSA-L Y
  • InChI=1/C37H36N2O9S3.2Na/c1-3-38(25-27-9-7-11-33(23-27)49(40,41)42)31-19-15-29(16-20-31)37(35-13-5-6-14-36(35)51(46,47)48)30-17-21-32(22-18-30)39(4-2)26-28-10-8-12-34(24-28)50(43,44)45;;/h5-24H,3-4,25-26H2,1-2H3,(H2-,40,41,42,43,44,45,46,47,48);;/q;2*+1/p-2
    Key: SGHZXLIDFTYFHQ-NUQVWONBAU
SMILES
  • CCN(CC1=CC(=CC=C1)S(=O)(=O)[O-])C2=CC=C(C=C2)C(=C3C=CC(=[N+](CC)CC4=CC(=CC=C4)S(=O)(=O)[O-])C=C3)C5=CC=CC=C5S(=O)(=O)[O-].[Na+].[Na+]
Properties
C37H34N2Na2O9S3
Molar mass 792.85 g/mol
Melting point 283 °C (decomposes)
soluble
Hazards
NFPA 704 (fire diamond)
2
1
0
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
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