Pyrazinone

2(1H)-Pyrazinone, 1-ethyl-5,6-diphenyl-

2(1H)-Pyrazinone, 4-amino-3,4-dihydro-3-imino-1-beta-D-ribofuranosyl-, monohydrochloride

2(1H)-Pyrazinone, 3-(4-chlorophenyl)-

2(1H)-Pyrazinone, 6-(1H-indol-3-ylmethyl)-5-methoxy-3-(2-methylpropyl)-, 4-oxide

2(1H)-Pyrazinone,5-methoxy-6-[(5-methoxy-1H-indol-3-yl)methyl]-3-(2-methylpropyl)-

3-[(trifluoromethyl)sulfanyl]-2(1h)-pyrazinone