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1,4-Dihydropyrazine-2,3-dione: BD00940638931-18-097%; ￥1109.01g

6-Methyl-5-oxo-4,5-dihydropyrazine-2-carboxylic acid: BD23087477168-83-397%; ￥1487.01g

3-Oxo-3,4-dihydropyrazine-2-carboxylic acid: BD261420737-42-297%; ￥978.0100g

2-Isopropyl-3,6-dimethoxy-2,5-dihydropyrazine: BD518438148403-14-997%; ￥543.0100mg

6-Oxo-1,6-dihydropyrazine-2-carboxylic acid: BD24897613924-99-795%; ￥964.0250mg

1-Benzyl 4-tert-butyl 2,3-dihydropyrazine-1,4-dicarboxylate: BD3337421228675-27-197%; ￥3167.01g

5,6-Dimethyl-2,3-dihydropyrazine: BD30457315986-92-295%; ￥4615.01g

Sodium (3-oxo-3,4-dihydropyrazine-2-carbonyl)amide: BD007961341237524-82-197%; ￥119.01g

(R)-2-Isopropyl-3,6-dimethoxy-2,5-dihydropyrazine: BD47372109838-85-997%; ￥954.05g

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