CI NO 22610;blue2b;CI 22610;CI 262610;blue2bsalt;modrprima6;nci-c54579;DIRECT BLUE;benzobluegs;directbluea;DIRECT BLUE 6;Benzo Blue 2B;C.I. Direct blue 6;3,3'-((4,4'-biphenylylene)bis(azo))bis(5-amino-7-naphthalenedisulfonic acid;airedale blue 2bd;aizen direct blue 2bh;amanil blue 2bx;atlantic blue 2b;atul direct blue 2b;C.I.Direct Blue 6;iredale Blue 2BD;Aizen Direct Blue 2BH;Amanil Blue 2BX;Atlantic Blue 2B;Atul Direct Blue 2B;Azocard Blue 2B;skyblue5b;skyblue4b;paperblues;Nippon Blue B;LIGHT BLUE;ESSEX DIRECT BLUE 2 B CONC;directbluehh;direct sky blue 5B;DIRECT BLUE 6 (C.I. 22610);Diaminreinbl;airedaleblued;5,5'-Diamino-4,4'-dihydroxy-3,3'-(3,3'-dimethoxy-biphenyl-4,4'-diylbisazo)-bis-naphthalin-2,7-disulfonsaeure,Natriumsalz;5,5'-diamino-4,4'-dihydroxy-3,3'-(3,3'-dimethoxy-biphenyl-4,4'-diyl-bis-azo)-bis-naphthalene-2,7-disulfonic acid,sodium salt;tetrasodium 5,5'-(1,1'-biphenyl-4,4'-diylbisazo)-bis-7-amino-6-hydroxy-naphthalene-1,4-disulphonate;DIRECT BLUE 2B C.I.NO.22610