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5-tert-butyl-1,3-oxazole-4-carboxylic acid: BD00806803914637-34-697%; ￥1404.01g

Oxazole-4-carboxylic acid: BD2811723012-13-797%; ￥44.01g

2-Isopropyloxazole-4-carboxylic acid: BD37147153180-21-396%; ￥1866.01g

2-Acetyloxazole-4-carboxylic acid: BD011099581297542-52-997%; ￥2584.0100mg

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