(2-Methyl-1-(2-piperidino-1-ethyl)-2-(1,4-dihydro-4-pyridylidene))-1,3-indenedione (Methyl-2 (piperidino-2 ethyl-1)-1 dihydro 1-4 pyridylidene-4 yl)-2 indanedione 1-3 62295-52-7 IH-Indene-1,3(2H)-dione, 2-(2-methyl-1-(2-(1-piperidinyl)ethyl)-4-(1H)-pyridinylidene)-