4-Phenylalanylaminoantipyrine 62989-74-6 Benzenepropanamide, alpha-amino-N-(2,3-dihydro-1,5-dimethyl-3-oxo-2-phenyl-1H-pyrazol-4-yl)-,(+-)- DL-Phenylalanine-4-antipyrineamide TJ 4