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6-Aminopyrazine-2-carboxylic acid: BD16033461442-38-497%; ￥141.01g

5-Methoxypyrazine-2-carboxylic acid: BD15877940155-42-897%; ￥41.01g

5-Methylpyrazine-2-carboxylic acid: BD35155521-55-198%; ￥38.05g

3,5-Dimethylpyrazine-2-carboxylic acid: BD216581946493-27-298%; ￥1024.0250mg

Pyrazine-2-carboxylic acid: BD261298-97-598%; ￥804.01kg

5-Carboxy-2-methylpyrazine 1-oxide: BD2110651037-30-097%; ￥105.01g

6-Methylpyrazine-2-carboxylic acid: BD1097695521-61-997%; ￥65.01g

3,6-Dimethylpyrazine-2,5-dicarboxylic acid: BD0082112443015-44-798%; ￥2880.01g

6-Methoxy-2-pyrazinecarboxylic acid: BD20751824005-61-698%; ￥1244.05g

5-Chloropyrazine-2-carboxylic acid: BD10367036070-80-198%; ￥84.05g

Pyrazine-2,5-dicarboxylic acid: BD149609122-05-497%; ￥826.0100g

5-Aminopyrazine-2-carboxylic acid: BD2066140155-43-996%; ￥231.01g

3-Amino-5-methylpyrazine-2-carboxylic acid: BD2316786761-50-897%; ￥1925.01g

3-Methoxypyrazine-2-carboxylic acid: BD23430340155-47-398%; ￥636.05g

5-Methylpyrazine-2,3-dicarboxylic acid: BD214145521-60-895%; ￥1884.01g

5-Ethylpyrazine-2-carboxylic acid: BD20893913534-75-395%; ￥6921.01g

5-(Difluoromethyl)pyrazine-2-carboxylic acid: BD2323481174321-06-295%; ￥168.01g

Pyrazine-2,6-dicarboxylic acid: BD221131940-07-895%; ￥91.0250mg

Pyrazine-2,3-dicarboxylic acid: BD986189-01-098%; ￥55.025g

3-Bromopyrazine-2-carboxylic acid: BD160342937669-80-297%; ￥4192.025g

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