CAS NO. 6420-09-3 | 5-Amino-4-hydroxy-3-[[4'-[(1-hydroxy-4-sulfonaphthalen-2-yl)azo]-3,3'-dimethyl[1,1'-biphenyl]-4-yl]azo]-2,7-naphthalenedisulfonic acid trisodium salt |

5-Amino-4-hydroxy-3-[[4'-[(1-hydroxy-4-sulfonaphthalen-2-yl)azo]-3,3'-dimethyl[1,1'-biphenyl]-4-yl]azo]-2,7-naphthalenedisulfonic acid trisodium salt

C.I.23710	Direct Blue BX
C.I.Direct Blue 21	5-Amino-4-hydroxy-3-[[4'-[(1-hydroxy-4-sulfonaphthalen-2-yl)azo]-3,3'-dimethyl[1,1'-biphenyl]-4-yl]azo]-2,7-naphthalenedisulfonic acid trisodium salt
5-Amino-4-hydroxy-3-[[4'-[(1-hydroxy-4-sodiosulfo-2-naphthalenyl)azo]-3,3'-dimethyl-1,1'-biphenyl-4-yl]azo]naphthalene-2,7-disulfonic acid disodium salt