2150-54-1 tetrasodium 3,3'-[(3,3'-dimethyl[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[4,5-dihydroxynaphthalene-2,7-disulphonate]

product Name tetrasodium 3,3'-[(3,3'-dimethyl[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[4,5-dihydroxynaphthalene-2,7-disulphonate] Synonyms C.I. 23790; C.I. Direct Blue 25 (VAN); C.I. Direct Blue 25, tetrasodium salt; C.I. Direct Blue 25; C.I. Direct Blue 25, tetrasodium salt (8CI); (3Z)-5-hydroxy-3-({4'-[(2E)-2-(8-hydroxy-1-oxo-3,6-disulfonaphthalen-2(1H)-ylidene)hydrazino]-3,3'-dimethylbiphenyl-4-yl}hydrazono)-4-oxo-3,4-dihydronaphthalene-2,7-disulfonic acid Molecular Formula C34H26N4O16S4 Molecular Weight 874.8474 InChI InChI=1/C34H26N4O16S4/c1-15-7-17(3-5-23(15)35-37-31-27(57(49,50)51)11-19-9-21(55(43,44)45)13-25(39)29(19)33(31)41)18-4-6-24(16(2)8-18)36-38-32-28(58(52,53)54)12-20-10-22(56(46,47)48)14-26(40)30(20)34(32)42/h3-14,35-36,39-40H,1-2H3,(H,43,44,45)(H,46,47,48)(H,49,50,51)(H,52,53,54)/b37-31-,38-32+ CAS Registry Number 2150-54-1 EINECS 218-432-5 Molecular Structure Density 1.81g/cm3 Refractive index 1.774 Hazard Symbols Risk Codes Safety Description