Brilliant Blue FCF

Title: Brilliant Blue FCF
CAS Registry Number: 3844-45-9
CAS Name: N-Ethyl-N-[4-[[4-[ethyl[(3-sulfophenyl)methyl]amino]phenyl](2-sulfophenyl)methylene]-2,5-cyclohexadien-1-ylidene]-3-sulfobenzenemethanaminium inner salt, disodium salt
Additional Names: FD & C Blue No. 1; C.I. Acid Blue 9; C.I. Food Blue 2; C.I. 42090
Molecular Formula: C37H34N2Na2O9S3
Molecular Weight: 792.85
Percent Composition: C 56.05%, H 4.32%, N 3.53%, Na 5.80%, O 18.16%, S 12.13%
Literature References: Discovered by Sandmeyer in 1896: Colour Index vol. 4 (3rd ed., 1971) p 4385. Also prepared as the diammonium salt. Metabolism: S. M. Hess, O. G. Fitzhugh, J. Pharmacol. Exp. Ther. 114, 38 (1955); J. P. Brown et al., Food Cosmet. Toxicol. 18, 1 (1980). Toxicology: E. Gross, Z. Krebsforsch. 64, 287 (1961); W. A. Mannell, H. C. Grice, J. Pharm. Pharmacol. 16, 56 (1964); W. H. Hansen et al., Toxicol. Appl. Pharmacol. 8, 29 (1966). Chronic toxicity and carcinogenicity: J. F. Borzelleca et al., Food Chem. Toxicol. 28, 221 (1990). Review of carcinogenicity studies: IARC Monographs 16, 171-186 (1978).
Properties: Reddish-violet powder or granules with a metallic lustre. Absorption max: 630 nm. Sol in water, ethanol. Practically insol in vegetable oils. Pale amber soln in conc H2SO4, changing to yellow then greenish blue on dilution. LD50 s.c. in mice: 4.6 g/kg (Gross).
Absorption maximum: Absorption max: 630 nm
Toxicity data: LD50 s.c. in mice: 4.6 g/kg (Gross)
Use: Colorant in food, drugs and cosmetics. Biological stain; textile dye; wood stain; indicator.
Brimonidine Brinzolamide Brivaracetam Brivudine Brodimoprim

Brilliant Blue FCF
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Identifiers
CAS number 3844-45-9 YesY
PubChem 19700
ChemSpider 18556 YesY
UNII H3R47K3TBD YesY
ChEMBL CHEMBL423337 N
Jmol-3D images Image 1
Properties
Molecular formula C37H34N2Na2O9S3
Molar mass 792.85 g/mol.
Hazards
NFPA 704
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Except where noted otherwise, data are given for materials in their standard state (at 25 °C (77 °F), 100 kPa)
Infobox references

Brilliant Blue FCF (Blue 1), also known under commercial names, 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.