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PubChem can be accessed for free through a web user interface. Millions of compound structures and descriptive datasets can be freely downloaded via FTP. PubChem contains multiple substance descriptions and small molecules with fewer than 100 atoms and 1,000 bonds. More than 80 database vendors contribute to the growing PubChem database. [2]
WURCS GlycoCT PubChem CID G "Glycan Repository". 122194 Gmelin Gmelin database: Elsevier: inorganic and organometallic compounds closed access 1,500,000 G-SRS Global Substance Registration System: CAS PubChem ChEMBL INN UNII "G-SRS". 109,260 GMD Golm Metabolome Database GC/MS of metabolites "GMD". Guide to PHARMACOLOGY IUPHAR: drugs and targets
Compounds are organized into the following lists: List of inorganic compounds, compounds without a C–H bond; ... PubChem This page was last edited on 3 January 2024 ...
Although most compounds are referred to by their IUPAC systematic names (following IUPAC nomenclature), ...
MCS is also used for screening drug like compounds by hitting molecules, which share common subgraph (substructure). [28] Chemicals in the databases may be clustered into groups of 'similar' molecules based on similarities. Both hierarchical and non-hierarchical clustering approaches can be applied to chemical entities with multiple attributes.
The PubChem links gives access to more information on the compounds, including other names, IDs, toxicity and safety. [citation needed] Acids from the two-carbon oxalic acid to the ten-member sebacic acid may be remembered using the mnemonic 'Oh My Son, Go And Pray Softly And Silently', and also 'Oh my! Such great Apple Pie, sweet as sugar!'.
The compound undergoes a redistribution reaction with mercuric chloride to give methylmercury chloride: (CH 3) 2 Hg + HgCl 2 → 2 CH 3 HgCl. Whereas dimethylmercury is a volatile liquid, methylmercury chloride is a crystalline solid. [7]
Chemical nomenclature, replete as it is with compounds with very complex names, is a repository for some names that may be considered unusual. A browse through the Physical Constants of Organic Compounds in the CRC Handbook of Chemistry and Physics (a fundamental resource) will reveal not just the whimsical work of chemists, but the sometimes peculiar compound names that occur as the ...