3H-Pyrazol-3-one, 4-amino-1,2-dihydro-1,5-dimethyl-2-phenyl-, phosphate (1:1) 4-Amino-1,2-dihydro-1,5-dimethyl-3-oxo-2-phenyl-3H-pyrazolium dihydrogen phosphate 4-Aminoantipyrine phosphate 68258-97-9 EINECS 269-500-6