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Römpp's Chemistry Lexicon (German Römpp Lexikon Chemie) is a chemical encyclopedia from Germany. Started by chemistry teacher Hermann Römpp in 1947 it has evolved to the leading chemical encyclopedia in German language. Römpp's Chemistry Lexicon contains around 64,000 entries and 215,000 links. [1]
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Chemexper Chemical Directory catalogue chemicals CASno Structure SMILES "ChemExper". Chemxpert Database Chemxpert Chemical Database small molecules database buyers,suppliers "ChemxpertDB". 10,00000 Chemical Book East West University: commercially available compounds CASno, suppliers, properties "Chemical Book". 200,000 Chemical Register
Chemical Profiles (The Innovation Group) Chemical Information from ImageWave; Chemistry resources is a collection of links and references that are useful for chemistry-related work. This includes free online chemical databases, publications, patents, computer programs, and various tools.
A material property is an intensive property of a material, i.e., a physical property or chemical property that does not depend on the amount of the material. These quantitative properties may be used as a metric by which the benefits of one material versus another can be compared, thereby aiding in materials selection.
Description: This book explained Dalton's theory of atoms and its applications to chemistry. Importance: The book was one of the first to describe a modern atomic theory, a theory that lies at the basis of modern chemistry. [3]: 251 It is the first to introduce a table of atomic and molecular weights.
ChemSpider served as the chemical compound repository as part of the Open PHACTS project, an Innovative Medicines Initiative. Open PHACTS developed to open standards, with an open access, semantic web approach to address bottlenecks in small molecule drug discovery - disparate information sources, lack of standards and information overload.
In 1997, the first online version was published. [4] 2014 marked its centenary. [3] As of 2016, Ullmann's Encyclopedia was in its 7th edition, in 40 volumes including one index volume and more than 1,050 articles (200 more than the 6th edition), approx. 30,000 pages, 22,000 images, 8,000 tables, 19,000 references and 85,000 indices. [5]