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Methyl 2-hydroxy-3-pyrazinecarboxylate
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Methyl 3-oxo-3,4-dihydro-2-pyrazinecarboxylate
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methyl 3-hydroxypyrazine-2-carboxylate
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methyl 3-oxo-3,4-dihydropyrazine-2-carboxylate
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3-Oxo-3,4-dihydro-pyrazin-2-carbonsaeure-methylester
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3-oxo-3,4-dihydro-pyrazine-2-carboxylic acid methyl ester
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Pyrazinecarboxylicacid,3,4-dihydro-3-oxo-,methylester
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2-Pyrazinecarboxylic acid, 3-hydroxy-, methyl ester
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2-Pyrazinecarboxylic acid, 3,4-dihydro-3-oxo-, methyl ester
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