Blue No.205

Legal color:	Blue No.205
General name:	Alphazurine FG
Class:	Acid Dye
FDA :	D & C Blue No.4
CI #:	C.I. 42090
Color #:	Acid Blue 9
CAS #:	2650-18-2
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,diammonium salt
IUPAC:	→1;Disodium bis[4-(N-ethyl-N-3-sulfonatophenylmethyl)aminophenyl]phenylmethylium (?) →2;Bis[4-(N-ethyl-N-3-sulfophenylmethyl)aminophenyl]phenylmethylium disodium salt (?)
Chemical structure :	Alphazurine FG