美国·药品说明书Dailymed

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Since 1921, Organic Syntheses has provided the chemistry community with detailed, reliable, and carefully checked procedures for the synthesis of organic compounds.

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默克索引（Merck Index）是由美国默克公司出版的记录化学药品、药物和生理性物质的综合性百科全书，可查询CAS号、化学式、分子量、结构式，熔点、沸点等化学信息。