2-Ethyl-3-methyl-4-(1-methyl-4-piperidyl)-2,4-dihydroindeno(1,2-c)pyrazol-4-ol 68946-22-5 BRN 0694443 Indeno(1,2-c)pyrazol-4-ol, 2,4-dihydro-2-ethyl-3-methyl-4-(1-methyl-4-piperidyl)-