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Blue No.1
| Legal color: | Blue No.1 @ | | General name: | Brilliant Blue FCF | | Class: | Acid Dye | | FDA : | FD & C Blue No.1 @ | | CI #: | C.I. 42090 | | Color #: | Food Blue 2 | | CAS #: | 3844-45-9 | | CAS : | Benzenemethanaminium,N-ethyl-N-[4-[[4-[ethyl[(3-sulfophenyl)methyl]amino]phenyl] (2-sulfophenyl)methylene]-2,5-cyclohexadien-1-ylidene]-3-sulfo-,hydroxide,inner salt,disodium salt | | IUPAC: | 1;Disodium bis[4-(N-ethyl-N-3-sulfonatophenylmethyl)aminophenyl]-2- sulfonatophenylmethylium (?)
2;Bis[4-(N-ethyl-N-3-sulfophenylmethyl)aminophenyl]-2-sulfophenylmethylium disodium salt (?)
| Chemical structure : |  
Brilliant Blue FCF |
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