Red No.2

Legal color:	Red No.2
General name:	Amaranth
Class:	Acid Dye
FDA :	(FD & C Red No.2)
CI #:	C.I. 16185
Color #:	Acid Red 27
CAS #:	915-67-3
CAS :	2,7-Naphthalenedisulfonic acid,3-hydroxy-4-[(4-sulfo-1-naphthalenyl)azo]-,trisodium salt
IUPAC:	→1;Trisodium 3-hydroxy-4-(4-sulfonato-1-naphthylazo)-2,7-naphthalenedisulfonate →2;1-(4-Sulfo-1-naphthylazo)-2-hydroxy-3,6-naphthalenedisulfonic acid trisodium salt →3;1'-(4-Sulfo-1-naphthylazo)-2'-hydroxy-3',6'-naphthalenedisulfonic acid trisodium salt
Chemical structure :	Amaranth