TIANFUCHEM-2(1H)-Quinolinone, 3-[4-[(1E)-(2,3-dihydro-1,5-dimethyl-3-oxo-2-phenyl-1H-pyrazol-4-yl)azo ]-4,5-dihydro-5-oxo-1H-pyrazol-3-yl]-1-ethyl-4-hydroxy-