72927-70-9

Tetrasodium 4,4-bis((4,5-dihydro-3-methyl-5-oxo-1-(4-sulphonatophenyl)-1H-pyrazol-4-yl)azo)(1,1-biphenyl)-2,2-disulphonate tetrasodium 4,4'-bis[[4,5-dihydro-3-methyl-5-oxo-1-(4-sulphonatophenyl)-1H-pyrazol-4-yl]azo][1,1'-biphenyl]-2,2'-disulphonate 4,4'-Bis[[4,5-dihydro-3-methyl-5-oxo-1-(4-sodiosulfophenyl)-1H-pyrazol-4-yl]azo]-1,1'-biphenyl-2,2'-disulfonic acid disodium salt [1,1'-Biphenyl]-2,2'-disulfonic acid, 4,4'-bis[[4,5-dihydro-3-methyl-5-oxo-1-(4-sulfophenyl)-1H-pyrazol-4-yl]azo]-, tetrasodium salt [1,1'-Biphenyl]-2,2'-disulfonic acid,4,4'-bis[[4,5-dihydro-3-methyl-5-oxo-1-(4'-sulfophenyl)-1H-pyrazol-4-yl]azo]-, tetrasodium salt