Blue 1

Brilliant Blue FCF
Names


IUPAC name ethyl - [4 - [ [4 - [ethyl -[(3 - sulfophenyl) methyl] amino] phenyl] - (2 - sulfophenyl) methylidene] - 1 - cyclohexa - 2, 5 - dienylidene] - [(3 - sulfophenyl) methyl] azanium
Other names FD&C Blue No.1 Acid Blue 9 D&C Blue No. 4 Alzen Food Blue No. 1 Atracid Blue FG Blue #1 Lake Erioglaucine Eriosky blue Patent Blue AR Xylene Blue VSG C.I. 42090 Basacid Blue 755, Sulfacid Brilliant Blue 5 J, Neolan Blue E-A
Identifiers
CAS Number	3844-45-9^Y
3D model (Jmol)	Interactive image
ChemSpider	18556^Y
ECHA InfoCard	100.021.219
E number	E133 (colours)
PubChem CID	19700
UNII	H3R47K3TBD^Y
InChI 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 [Na+].[Na+].[O-]S(=O)(=O)c1cccc(c1)CN(c2ccc(cc2)/C(=C\4/C=C\C(=[N+](\CC)Cc3cccc(c3)S([O-])(=O)=O)/C=C/4)c5ccccc5S([O-])(=O)=O)CC
Properties
Chemical formula	C₃₇H₃₄N₂Na₂O₉S₃
Molar mass	792.85 g/mol
Solubility in water	soluble
Hazards
R-phrases	R33
S-phrases	S24/25 S28 S37 S45
NFPA 704	1 0 0
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
N (what is ^YN ?)
Infobox references

Brilliant Blue FCF (Blue 1) is an organic compound classified as a triarylmethane dye, reflecting its chemical structure. Known under various commercial names, it is a colorant for foods and other substances. It is denoted by E number E133 and has a color index of 42090. It has the appearance of a reddish-blue powder. It is soluble in water, and the solution has a maximum absorption at about 628 nanometers.

It is a synthetic dye produced by the condensation of 2-formylbenzenesulfonic acid and the appropriate aniline followed by oxidation. It can be combined with tartrazine (E102) to produce various shades of green.

It is usually a disodium salt. The diammonium salt has CAS number 3844-45-9. Calcium and potassium salts are also permitted. It can also appear as an aluminium lake. The chemical formation is C₃₇H₃₄N₂Na₂O₉S₃.

Related dyes are C.I. acid green 3 (CAS#4680-78-8) and acid green 9 (CAS#4857-81-2). In these dyes, the 2-sulfonic acid group is replaced by H and Cl, respectively.

As a blue color, Brilliant Blue FCF is often found in ice cream, canned processed peas, packet soups, bottled food colorings, icings, ice pops, blue raspberry flavored products, dairy products, sweets and drinks, especially the liqueur Blue Curaçao. It is also used in soaps, shampoos, mouthwash and other hygiene and cosmetics applications. In soil science, Brilliant Blue is applied in tracing studies to visualize infiltration and water distribution in the soil. In the United States, of the two approved blue dyes (the other being Indigo carmine, or FD&C Blue #2), Brilliant Blue FCF is the more common of the two.

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Wikipedia