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Brilliant blue FCF
Chemical compound / From Wikipedia, the free encyclopedia
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"Blue 1" redirects here. For the airline, see Blue1.
Not to be confused with Coomassie brilliant blue.
Brilliant blue FCF (Blue 1) is a synthetic organic compound used primarily as a blue colorant for processed foods, medications, dietary supplements, and cosmetics.[1] 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,[2] 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.[3]
Quick Facts Names, Identifiers ...
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Names | |
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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
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Identifiers | |
3D model (JSmol) |
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ChEBI | |
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ECHA InfoCard | 100.021.219 ![]() |
EC Number |
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E number | E133 (colours) |
KEGG | |
PubChem CID |
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UNII | |
CompTox Dashboard (EPA) |
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Properties | |
C37H34N2Na2O9S3 | |
Molar mass | 792.85 g/mol |
Melting point | 283 °C (decomposes) |
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NFPA 704 (fire diamond) | |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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