2,5-Dihydro-2-(4-hydroxyphenyl)-3H-pyrazolo(4,3-c)quinolin-3-one 3H-Pyrazolo(4,3-c)quinolin-3-one, 2,5-dihydro-2-(4-hydroxyphenyl)- 77779-51-2 Cgs 11361 Cgs-11361