EMolecules
Encyclopedia
eMolecules is a search engine
for chemical
molecule
s. The system was first launched in November 2005.
Search engine
A search engine is an information retrieval system designed to help find information stored on a computer system. The search results are usually presented in a list and are commonly called hits. Search engines help to minimize the time required to find information and the amount of information...
for chemical
Chemistry
Chemistry is the science of matter, especially its chemical reactions, but also its composition, structure and properties. Chemistry is concerned with atoms and their interactions with other atoms, and particularly with the properties of chemical bonds....
molecule
Molecule
A molecule is an electrically neutral group of at least two atoms held together by covalent chemical bonds. Molecules are distinguished from ions by their electrical charge...
s. The system was first launched in November 2005.
Database
- The database contains more than 7.0M uniqueUniqueness quantificationIn mathematics and logic, the phrase "there is one and only one" is used to indicate that exactly one object with a certain property exists. In mathematical logic, this sort of quantification is known as uniqueness quantification or unique existential quantification.Uniqueness quantification is...
moleculeMoleculeA molecule is an electrically neutral group of at least two atoms held together by covalent chemical bonds. Molecules are distinguished from ions by their electrical charge...
s from commercialCommerceWhile business refers to the value-creating activities of an organization for profit, commerce means the whole system of an economy that constitutes an environment for business. The system includes legal, economic, political, social, cultural, and technological systems that are in operation in any...
suppliers, like Acros, ASINEX, ChemBridge, ChemDiv, Comgenex, Enamine LtdEnamine LtdEnamine Ltd is a chemical company headquartered in Kiev, Ukraine.Located in Eastern Europe, it is a provider of high throughput screening compounds, synthetic building blocks and fine chemicals...
, FlukaFLUKAFLUKA is a fully integrated Monte Carlo simulation package for the interaction and transport of particles and nuclei in matter....
, InterBioScreen, Key Organics, Life Chemicals, Maybridge, OtavaOtavaOtava Publishing Company Ltd. is a major Finnish publisher of books. It was founded in 1890 and now is the second largest in Finland. It publishes fiction, non-fiction, books for teenagers and children, multimedia and teaching materials. The number of new titles a year exceeds 400...
, Sigma-AldrichSigma-AldrichSigma-Aldrich Corporation , is a life science and high technology company with over 7,600 employees and operations in 40 countries. Its chemical and biochemical products and kits are used in scientific research, biotechnology, pharmaceutical development, the diagnosis of disease, and as key...
, Specs, and many more. - The database contains also all entries provided by NIST, PubChemPubChemPubChem is a database of chemical molecules and their activities against biological assays. The system is maintained by the National Center for Biotechnology Information , a component of the National Library of Medicine, which is part of the United States National Institutes of Health . PubChem can...
, and DrugBankDrugBankThe DrugBank database available at the University of Alberta is a bioinformatics and cheminformatics resource that combines detailed drug data with comprehensive drug target information...
. Duplicated (non-unique) index numbers are resolved automatically.
Searching
Two public available search modules are provided- The standard search allows queryingInformation retrievalInformation retrieval is the area of study concerned with searching for documents, for information within documents, and for metadata about documents, as well as that of searching structured storage, relational databases, and the World Wide Web...
for names, substructureSubstructureIn mathematical logic, an substructure or subalgebra is a structure whose domain is a subset of that of a bigger structure, and whose functions and relations are the traces of the functions and relations of the bigger structure...
s, and suppliers. - The expert search allows interactive searching using also a molecular weight range, CASChemical Abstracts ServiceChemical Abstracts is a periodical index that provides summaries and indexes of disclosures in recently published scientific documents. Approximately 8,000 journals, technical reports, dissertations, conference proceedings, and new books, in any of 50 languages, are monitored yearly, as are patent...
numbers, suppliers, etc. The search can be used to widen or restrict already found results.