SUMPTER, W C Ethyl acetoacetate 4-nitrophenylhydrazone and 1-(4-nitrophenyl)-3-methylpyrazolone-5. [electronic resource] - Journal of the American Chemical Society May 1948 - 1980 p. digital Publication Type: Journal Article ISSN: 0002-7863 Standard No.: 10.1021/ja01185a524 doi Subjects--Topical Terms: AcetoacetatesNitrophenols