2-((4-((3-Methyl-5-oxo-1-(3-oxo-3-(3-toluidino)propanoyl)-4,5-dihydro-1H-pyrazol-4-yl)diazenyl)phenyl)sulfonyl)ethyl hydrogen sulfate AIDS-147349 AIDS147349 NSC676916 {1-[m-Methyl} anilino {malonyl]-3-methyl-4-[4'-.beta.-sulphato} ethyl sulphonyl phenyl azo\]-5-pyrazolone