C.I.16595
C.I. 16595
Acid Blue 4
C.I.Acid Blue 4
Azo Acid Blue 3B
Portofino Blue ES
C.I.Acid Blue 4:C.I.16595
4,5-Dihydroxy-3-[[4-(dimethylamino)phenyl]azo]-2,7-naphthalenedisulfonic acid disodium salt
(a) N1,N1-dimethylbenzene-1,4-diamine diazo, coupled with 4,5-Dihydroxynaphthalene-2,7-disulfonic acid; (b) will C.I.Acid Violet 3 (C.I. 16580) for two methylated amino.
