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6-Amino-4-methylnicotinic acid: BD70220179555-11-495%; ￥955.05g

4-Methylnicotinic acid hydrochloride: BD9906994015-05-195%; ￥2493.025g

2,4-Dimethylpyridine-3-carboxylic acid: BD2903855314-30-295+%; ￥345.01g

2-Amino-4-methylnicotinic acid: BD7023238076-82-395%; ￥2564.01g

4-Methylnicotinic acid: BD990683222-50-298%; ￥217.010g

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