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Die Merck Chemie Datenbank enthält umfangreiche Produktinformationen der Geschäftsbereiche Labor-Reagenzien, wissenschaftliche Laborprodukte, Kosmetik, Pharma, Lebensmittel-Chemie, Pigmente, Technische Chemie und Elektronik-Chemie.
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This compilation of kinetic and photochemical data is prepared by the NASA Panel for Data Evaluation. The Panel was established in 1977 by the NASA Upper Atmosphere Research Program Office for the purpose of providing a critical tabulation of the latest kinetic and photochemical data for use by modelers in computer simulations of atmospheric chemistry. Updates to this evaluation are released every two to three years in electronic form as JPL Publications.
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ChemIDplus is a free, web-based search system that provides access to structure and nomenclature authority files used for the identification of chemical substances cited in National Library of Medicine (NLM) databases, including the TOXNET system. ChemIDplus also provides structure searching and direct links to many biomedical resources at NLM and on the Internet for chemicals of interest. The database contains over 388,000 chemical records, of which over 295,000 include chemical structures, and is searchable by Name, Synonym, CAS Registry Number, Molecular Formula, Classification Code, Locator Code, Structure, Toxicity, and/or Physical properties.
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ChemSpider is a free chemical structure database providing access to over 25 million structures, properties and associated information. By integrating and linking compounds from more than 400 data sources, ChemSpider enables researchers to discover the most comprehensive view of freely available chemical data from a single online search. ChemSpider builds on the collected sources by adding additional properties, related information and links back to original data sources. ChemSpider offers text and structure searching to find compounds of interest.
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ChemSynthesis is a freely accessible database of chemicals. This website contains substances with their synthesis references and physical properties such as melting point, boiling point and density. There are currently more than 40,000 compounds and more than 45,000 synthesis references in the database.
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COMAR helps you find a suitable certified reference material (CRM) for your laboratory. For a large number of materials offered worldwide we have produced data sheets and collected them in the COMAR database. You can browse and search the database at no cost. What is not included in the database are reference materials that come without a certificate.
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The web version of the Handbook of Chemistry and Physics contains all of the documents and tables present in the printed edition in a fully searchable and interactive web application.
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This website provides kinetic and photochemical data evaluated by the IUPAC Subcommittee for Gas Kinetic Data Evaluation.
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ICDS (Inorgaic Crystal Structure Database) is a comprehensive database on the complete structural information for inorganic compounds. It contains bibliographic information, compound name, molecular formular, as well as crystal symmetry group, unit cell parameters, atomic coordinates and temperature factors.
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A database containing solubilities originally published in the IUPAC (International Union for Pure and Applied Chemistry). Mutual solubilities and liquid-liquid equilibria of binary, ternary and quaternary systems are presented. Typical solvents and solutes include water, sea water, heavy water, inorganic compounds, and a variety of organic compounds such as hydrocarbons, halogenated hydrocarbons, alcohols, acids, esters and nitrogen compounds. Scope: There are over 67,500 solubility measurements, compiled from 18 volumes of the IUPAC Solubility Data Series. There are about 1800 chemical substances in the database and 5200 systems, of which 473 have been critically evaluated.
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