默克索引
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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。
Highlights
The Merck Index is a comprehensive chemistry reference providing information on over 100,000 chemical compounds. It is an essential tool for chemists, researchers, and students alike. The Merck Index is updated regularly to reflect the latest advances in chemistry, making it an invaluable resource for anyone working in the field.