Synonyms:

1H-Pyrazole,5-oxo-4,5-dihydro-3-methyl-4-[[3-[(phenylamino)sulfonyl]-4-methylphenyl]azo]-1-(4-sulfophenyl)-,sodiumsalt;sodium 4-(3-methyl-4-(4-methyl-3-(phenylaminosulphonyl)phenylazo)-5-hydroxypyrazol-1-yl)benzenesulphonate;AcidYellowER;C.I.AcidYellow25;Benzenesulfonic acid, 4-4,5-dihydro-3-methyl-4-4-methyl-3-(phenylamino)sulfonylphenylazo-5-oxo-1H-pyrazol-1-yl-, monosodium salt;Yellow R;Acid Fast Yellow ER;Covanyl Yellow RN

Canonical SMILES: CC1=C(C=C(C=C1)N=NC2C(=NN(C2=O)C3=CC=C(C=C3)S(=O)(=O)[O-])C)S(=O)(=O)NC4=CC=CC=C4.[Na+]

WGK Germany: 3