Benzoic acid,5-[[4'-[[4,5-dihydro-3-methyl-5-oxo-1-(4-sulfophenyl)-1H-pyrazol-4-yl]azo][1,1'-biphenyl]-4-yl]azo]-2-hydroxy-,disodium salt (9CI); Salicylic acid,5-[[4'-[[3-methyl-5-oxo-1-(p-sulfophenyl)-2-pyrazolin-4-yl]azo]-4-biphenylyl]azo]-,disodium salt (8CI); C.I. 22375