2-((4-((1-(3-(3-Methoxyanilino)-3-oxopropanoyl)-3-methyl-5-oxo-4,5-dihydro-1H-pyrazol-4-yl)diazenyl)phenyl)sulfonyl)ethyl hydrogen sulfate AIDS-147350 AIDS147350 NSC676917 {1-[m-Anisidic} anilino {malonyl]-3-methyl-4-[4'-.beta.-sulphato} ethyl sulphonyl phenyl azo\]-5-pyrazolone