Blue No.203

Legal color:	Blue No.203
General name:	Patent Blue CA
Class:
FDA :
CI #:	C.I. 42052
Color #:	Acid Blue 5
CAS #:	3374-30-9
CAS :	Benzenemethanaminium,N-ethyl-N-[4-[[4-[ethyl(phenylmethyl)amino]phenyl] (5-hydroxy-2,4-disulfophenyl)methylene]-2,5-cyclohexadien-1-ylidene]-, hydroxide,inner salt,calcium salt(2:1)
IUPAC:	→1;Calcium Bis[di{4-(N-ethyl-N-benzyl)aminophenyl}-5-hydroxy-2,4-disulfonatophenylmethylium] (?) →2;[Di{4-(N-ethyl-N-benzyl)aminophenyl}-5-hydroxy-2,4-disulfophenylmethylium] calcium salt (?)
Chemical structure :