CHEMICAL ABSTRACTS SERVICE LICENSE AGREEMENT

本合同的目的是维护一份许可协议 关于使用化学文摘服务机构的数据的权利 (CAS)。许可的CAS产品是计算机可读的 索引指南、CA搜索和化学生物的版本 活动。来自这些产品的选择性数据被用作 CHEMLINE，一个在线化学词典，包含超过 775,000条记录和TOXLIT/TOXLIT65，两个在线书目 包含超过1500,000条毒理学引文的数据库 文学。 此合同/许可证为其提供数据的在线数据库 可通过国家图书馆的ELHILL搜索系统获得 医学图书馆，一周7天，每天24小时提供 生物医学研究人员快速准确地访问 毒物学文献。

The objective of this contract is to maintain a license agreement for the rights to use data from the Chemical Abstracts Service (CAS). The CAS products licensed are the computer readable versions of The Index Guide, CA Search, and Chemical Biological Activities. Selective data from these products are used as part of CHEMLINE, an online chemical dictionary containing over 775,000 records, and TOXLIT/TOXLIT65, two online bibliographic databases which contain over 1,500,000 citations to the toxicology literature. The online databases for which this contract/license provides data are available through the ELHILL search system at the National Library of Medicine, 24 hours a day, 7 days a week to give biomedical researchers fast and accurate access to the toxicological literature.