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INFOMINE建于1994年，拥有电子期刊、电子图书、公告栏、邮件列表、图书馆在线目录、研究人员人名录，以及其他类型的信息资源40,000多个。INFOMINE对所有用户免费开放，部分资源站点是免费的，部分需要购买使用权。INFOMINE共包括12个数据库，其资源类型（resource type）非常细致，共有102项之多。 Essential data, analysis and training solutions that enable the mining industry to innovate and prosper in fast-changing global markets.

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以图搜图工具 Yandex is a technology company that builds intelligent products and services powered by machine learning. Our goal is to help consumers and businesses better navigate the online and offline world. Since 1997, we have delivered world-class, locally relevant search and information services. Additionally, we have developed market-leading on-demand transportation services, navigation products, and other mobile applications for millions of consumers across the globe. Yandex, which has 17 offices worldwide, has been listed on the NASDAQ since 2011.

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检索结果包括化合物的中英文名称、化合物分子式源文件下载，以及详尽的国内外供应商信息、化学性质、化合物的MSDS、试剂商城等。 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.

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searx搜索引擎,Searx公开地址合集 Online and offline SearXNG instances