A CAS Registry Number is a unique identification number, assigned by the Chemical Abstracts Service (CAS) in the US to every chemical substance described in the open scientific literature, in order to index the substance in the CAS Registry. This registry includes all substances described since 1957, plus some substances from as far back as the early 1800s; it is a chemical database that includes organic and inorganic compounds, minerals, isotopes, alloys, mixtures, and nonstructurable materials. CAS RNs are generally serial numbers, so they do not contain any information about the structures themselves the way SMILES and InChI strings do.
Alfred Stock was a German inorganic chemist. He did pioneering research on the hydrides of boron and silicon, coordination chemistry, mercury, and mercury poisoning. The German Chemical Society's Alfred-Stock Memorial Prize is named after him.
A chemical database is a database specifically designed to store chemical information. This information is about chemical and crystal structures, spectra, reactions and syntheses, and thermophysical data.
Chemical Abstracts Service (CAS) is a division of the American Chemical Society. It is a source of chemical information and is located in Columbus, Ohio, United States.
zbMATHOpen, formerly Zentralblatt MATH, is a major reviewing service providing reviews and abstracts for articles in pure and applied mathematics, produced by the Berlin office of FIZ Karlsruhe – Leibniz Institute for Information Infrastructure GmbH. Editors are the European Mathematical Society, FIZ Karlsruhe, and the Heidelberg Academy of Sciences. zbMATH is distributed by Springer Science+Business Media. It uses the Mathematics Subject Classification codes for organising reviews by topic.
The Beilstein database is a database in the field of organic chemistry, in which compounds are uniquely identified by their Beilstein Registry Number. The database covers the scientific literature from 1771 to the present and contains experimentally validated information on millions of chemical reactions and substances from original scientific publications. The electronic database was created from Handbuch der Organischen Chemie, founded by Friedrich Konrad Beilstein in 1881, but has appeared online under a number of different names, including Crossfire Beilstein. Since 2009, the content has been maintained and distributed by Elsevier Information Systems in Frankfurt under the product name "Reaxys".
Angewandte Chemie is a weekly peer-reviewed scientific journal that is published by Wiley-VCH on behalf of the German Chemical Society. Publishing formats include feature-length reviews, short highlights, research communications, minireviews, essays, book reviews, meeting reviews, correspondences, corrections, and obituaries. This journal contains review articles covering all aspects of chemistry. According to the Journal Citation Reports, the journal had a 2023 impact factor of 16.1.
ChemDraw is a molecule editor first developed in 1985 by Selena "Sally" Evans, her husband David A. Evans, and Stewart Rubenstein. The company was sold to PerkinElmer in 2011. ChemDraw, along with Chem3D and ChemFinder, is part of the ChemOffice suite of programs and is available for Macintosh and Microsoft Windows.
The Wanzlick equilibrium is a chemical equilibrium between a relatively stable carbene compound and its dimer. The equilibrium was proposed to apply to certain electron-rich alkenes, such as tetraminoethylenes, which have been called "carbene dimers." Such equilibria occur, but the mechanism does not proceed simply, but requires catalysts.
FIZ Karlsruhe — Leibniz Institute for Information Infrastructure, formerly Fachinformationszentrum Karlsruhe, is a not-for-profit company with the public mission to make sci-tech information from all over the world publicly available and to provide related services in order to support the national and international transfer of knowledge and the promotion of innovation. The service institution is member of Gottfried Wilhelm Leibniz Scientific Community, a union of German research institutes. The institute provides information services and infrastructure for the academic and research community and maintains a collection of scientific databases.
Copper(I) fluoride or cuprous fluoride is an inorganic compound with the chemical formula CuF. Its existence is uncertain. It was reported in 1933 to have a sphalerite-type crystal structure. Modern textbooks state that CuF is not known, since fluorine is so electronegative that it will always oxidise copper to its +2 oxidation state. Complexes of CuF such as [(Ph3P)3CuF] are, however, known and well characterised.
The Proceedings of the USSR Academy of Sciences was a Soviet journal that was dedicated to publishing original, academic research papers in physics, mathematics, chemistry, geology, and biology. It was first published in 1933 and ended in 1992 with volume 322, issue 3.
The Asinger-reaction is a multicomponent reaction for the synthesis of 3-thiazolines and other related heterocycles. It is named after Friedrich Asinger who first reported it in 1956.
Organochromium chemistry is a branch of organometallic chemistry that deals with organic compounds containing a chromium to carbon bond and their reactions. The field is of some relevance to organic synthesis. The relevant oxidation states for organochromium complexes encompass the entire range of possible oxidation states from –4 (d10) in Na4[Cr–IV(CO)4] to +6 (d0) in oxo-alkyl complexes like Cp*CrVI(=O)2Me.
Hans-Werner Wanzlick (1917-1988) was a German chemist. A Professor of chemistry at Technische Universität Berlin he is notable for work on persistent carbenes and for proposing the Wanzlick equilibrium between saturated imidazolin-2-ylidenes and their dimers — which he called "das doppelte Lottchen", after a 1949 novel by Erich Kästner about a pair of mischievous twins.
Dihydroimidazol-2-ylidene is a hypothetical organic compound with formula C3H6N2. It would be a heterocyclic compound, formally derived from imidazolidine with two hydrogen atoms removed from carbon number 2, leaving two vacant chemical bonds — which makes it a carbene.
Margot Becke-Goehring was a Professor of Inorganic Chemistry at the University of Heidelberg and she was the first female rector of a university in West Germany - the Heidelberg University. She was also the director of the Gmelin Institute of Inorganic Chemistry of the Max Planck Society that edited the Gmelins Handbuch der anorganischen Chemie. She studied Chemistry in Halle (Saale) and Munich, and she finished her doctorate and habilitation at the University of Halle. For her research on the chemistry of main-group elements, she was awarded Alfred Stock Memorial Prize. One of her most notable contributions to inorganic chemistry was her work on the synthesis and structure of poly(sulfur nitride), which was later discovered to be the first non-metallic superconductor. For her success in editing the Gmelins Handbuch der anorganischen Chemie, she received the Gmelin-Beilstein memorial coin.
ChemInform was an indexing and abstracting service and database in chemistry. The service published abstracts related to organic, organometallic, inorganic and physical chemistry.
Hans Georg von Schnering was a German chemist and professor of inorganic chemistry at the University of Münster, honorary professor at the University of Stuttgart and director at the Max Planck Institute for Solid State Research.
Walter Leitner is a German chemist, the director of the Max Planck Institute for Chemical Energy Conversion heading the department "Molecular Catalysis" as well as a university lecturer at the RWTH Aachen University, where he holds the position of chair for technical chemistry and petrochemistry.
