1H-indole-2,3-dione 3-{[3-(1,5-dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazol-4-yl)-4-oxo-5-(2-oxo-1,2-dihydro-3H-indol-3-ylidene)-1,3-thiazolidin-2-ylidene]hydrazone}