"2-Pyrazinecarboxamide, 6-bromo-3,4-dihydro-3-oxo-"
"2-Pyrazinecarboxamide, 6-bromo-3,4-dihydro-3-oxo-"
"2-Pyrazinecarboxamide, 6-bromo-3,4-dihydro-3-oxo-"
6-溴-3-羟基吡嗪-2-甲酰胺
6-溴-3-羟基吡嗪-2-甲酰胺
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"2-Pyrazinecarboxamide, 6-bromo-3,4-dihydro-3-oxo-"