Chemicalbook is a platform dedicated to provide the most valuable resources for chemical industry users. Here you can get chemical information (such as chemical physical properties, safety data, Excellent china suppliers and their web addresses and etc.)by searching the name, CAS number, molecular formula, molecular weight, MDL number, EINECS number, structure.

化源网提供快速cas号查询，cas no查询，msds查询，数百万化合物的专业数据，包括物化, msds, 安全信息, 合成路线及文献, 毒性，上下游，期刊文献等。

a free chemical structure database providing fast text and structure search access to over 130 million structures from hundreds of data sources.

BOC Sciences is a custom lab chemical supplier that provides a wide range of bulk compounds for the pharmaceutical, agrochemical, and biotechnology industries.

molport is an advanced chemical e-marketplace, made for the research scientists in the chemical community. simpler, because its smarter!

CAS is a division of the American Chemical Society that provides products and services that help empower scientific discoveries. Check out our latest product, SciFinder-n, to see how you can inlock your R&D productivity.

pharmaffiliates is the world's leading manufacturer /suppliers/exporter of impurity standards. we offer certified reference standards of impurities, metabolites, stable isotopes, chiral compounds, apis, intermediates, glucuronides etc.

x-mol科学知识平台，顶级期刊论文图文内容每日更新，海内外课题组信息，行业新闻文摘，化学类网址导航，化学软件和数据库导航，及更多其他内容

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