Benzoic acid,4-[[(2,3-dihydro-3-oxo-2,5-diphenyl-4H-pyrazol-4-ylidene)methyl]amino]-, ethylester (9CI); Benzoic acid,p-[[(5-oxo-1,3-diphenyl-2-pyrazolin-4-ylidene)methyl]amino]-, ethyl ester (8CI)
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