Synonyms: trisodium 4-[[3-[[3-[4,5-dihydro-3-methyl-5-oxo-4-[(4-sulphonatophenyl)azo]-1H-pyrazol-1-yl]phenyl]azo]-2,4-dihydroxyphenyl]azo]-5-hydroxy-6-(phenylazo)naphthalene-2,7-disulphonate;trisodium 4-[[3-[[3-[4,5-dihydro-3-methyl-5-oxo-4-[(4-sulphonatophenyl)azo]-1H-pyrazol-1-yl]phenyl]azo]-2,4-dihydroxyphenyl]azo]-5-hydroxy-6-(phenylazo)naphthalene-2,7-disulphonate;4-[[3-[[3-[[4,5-Dihydro-3-methyl-5-oxo-4-[[4-(sodiooxysulfonyl)phenyl]azo]-1H-pyrazol]-1-yl]phenyl]azo]-2,4-dihydroxyphenyl]azo]-5-hydroxy-6-(phenylazo)-2,7-naphthalenedisulfonic acid disodium salt;Einecs 288-036-5